Starting with acetylene, show the reagents you would use to prepare the following compound: 2-Hexyne 1) NaOH 2) MeI 3) NaOH 4) CH3-CH2-I
Answers
The reagents used in the preparation of 2-hexyne from acetylene are NaOH, MeI, NaOH, and CH3-CH2-I. The reactions involve deprotonation of the acetylene, substitution reactions with alkyl halides, and additional deprotonation to obtain the desired product.
To prepare 2-hexyne starting from acetylene, you would use the following reagents: NaOH, MeI, NaOH, and CH3-CH2-I.
Here is a step-by-step explanation:
1) Start with acetylene (ethyne), which has the molecular formula C2H2. Acetylene is a terminal alkyne, meaning it has a triple bond between the two carbon atoms.
2) To convert acetylene into 2-hexyne, the first step involves treating acetylene with NaOH (sodium hydroxide). NaOH is a strong base that can deprotonate the terminal alkyne, resulting in the formation of the corresponding sodium alkynide salt. The reaction can be represented as follows:
C2H2 + NaOH → NaC≡CNa + H2O
3) Next, the sodium alkynide salt is reacted with MeI (methyl iodide), an alkyl halide. This reaction is known as an alkyl halide substitution. The methyl group from MeI replaces one of the sodium atoms in the sodium alkynide salt, resulting in the formation of an alkyl-substituted alkynide. The reaction can be represented as follows:
NaC≡CNa + MeI → NaC≡CMe + NaI
4) The resulting alkynide, NaC≡CMe, is then treated with NaOH again. This step involves adding excess NaOH to the reaction mixture. NaOH reacts with NaC≡CMe, resulting in the formation of a terminal alkyne, 2-hexyne. The reaction can be represented as follows:
NaC≡CMe + NaOH → HC≡CCH2CH2CH2CH3 + NaI
5) Lastly, to obtain 2-hexyne, the terminal alkyne, HC≡CCH2CH2CH2CH3, is reacted with CH3-CH2-I (iodoethane). This reaction involves an alkyl halide substitution, where the iodoethane adds an ethyl group to the alkyne. The reaction can be represented as follows:
HC≡CCH2CH2CH2CH3 + CH3-CH2-I → HC≡CCH2CH2CH2CH2CH3 + I-CH3
In summary, the reagents used in the preparation of 2-hexyne from acetylene are NaOH, MeI, NaOH, and CH3-CH2-I. The reactions involve deprotonation of the acetylene, substitution reactions with alkyl halides, and additional deprotonation to obtain the desired product.
Learn more about reagents here:-
https://brainly.com/question/28463799
#SPJ11
Related Questions
Macy has been studying physical and chemical reactions in school. She read about chemical reactions and how energy is either required or released during chemical reactions. Which word describes what type of reaction occurs as a lantern burns brightly?
A.physical
B.endothermic
C.nuclear
D.exothermic
Answers
Calculate the enthalpy change for the reaction from the
following:
A ---->
B ∆H = -188 kJ/mol
2C + 6B ----> 2D +
3E ∆H = -95
kJ/mol E
Answers
The enthalpy change for the reaction A → B is -188 kJ/mol. The enthalpy change for the reaction 2C + 6B → 2D + 3E is -95 kJ/mol.
To calculate the enthalpy change for a reaction, we need to use the concept of Hess's Law, which states that the overall enthalpy change of a reaction is equal to the sum of the enthalpy changes of its individual steps.
In this case, we have two reactions:
1. A → B with ∆H = -188 kJ/mol
2. 2C + 6B → 2D + 3E with ∆H = -95 kJ/mol
To find the enthalpy change for the overall reaction, we need to manipulate the given reactions in a way that cancels out the intermediates, B in this case. By multiplying the first reaction by 6 and combining it with the second reaction, we can eliminate B:
6A → 6B with ∆H = (-188 kJ/mol) x 6 = -1128 kJ/mol
2C + 6B → 2D + 3E with ∆H = -95 kJ/mol
Now we can sum up the two reactions to obtain the overall reaction:
6A + 2C → 2D + 3E with ∆H = -1128 kJ/mol + (-95 kJ/mol) = -1223 kJ/mol
Therefore, the enthalpy change for the overall reaction is -1223 kJ/mol.
To know more about enthalpy change click here:
https://brainly.com/question/31663014
#SPJ11
HCOOH + MnO, CO, + Mn2+ (in acidic solution) *
Answers
Step 1: Separate the whole reaction into two half-reactions
HCOOH → CO2 MnO4- → Mn2+
Step 2: Balance the non-hydrogen and non-oxygen elements first
HCOOH → CO2 MnO4- → Mn2+
(C is balanced) (Mn is balanced)
Step 3: Balance oxygen by adding H2O(l) to the side that needs oxygen (1 O : 1 H2O)
HCOOH → CO2 MnO4- → Mn2+ + 4H2O
Step 4: Balance hydrogen by adding H+ to the side that needs hydrogen (1 H: 1 H+)
HCOOH → CO2 + 2H+ 8H+ + MnO4- → Mn2+ + 4H2O
Step 5: Balance the charges: add electrons to the more positive side (or less negative side)
HCOOH → CO2 + 2H+ 8H+ + MnO4- → Mn2+ + 4H2O
Reactants Products Reactants Products
HCOOH = 0 2H+ = +2 8H+ =+8 Mn2+ =+2
__MnO4- = -1________________________
Overall = 0 +2 +7 overall = +2
+2e- +5e-
0 +2
Step 6: Balance electrons on the two half-reactions
5[HCOOH → CO2 + 2H+ +2e-]
2[5e- + 8H+ + MnO4- → Mn2+ + 4H2O]
5HCOOH → 5CO2 + 10H+ + 10e-
10e- + 16H+ + 2MnO4- → 2Mn2+ + 8H2O
Step 7: Get the overall reaction by adding the two reaction.
5HCOOH → 5CO2 + 10H+ + 10e-
10e- + 16H+ + 2MnO4- → 2Mn2+ + 8H2O
5HCOOH + 6H+ + 2MnO4- → 2Mn2+ + 8H2O + 5CO2
Balanced Redox Reaction:
5HCOOH + 6H+ + 2MnO4- → 2Mn2+ + 8H2O + 5CO2
if the phases of matter are arranged in order of increase disorder, what would that arrangement be
Answers
The order of increasing disorder is solid, liquid, and gas. This arrangement is based on the increasing freedom of movement and randomness of the particles as we move from solid to liquid to gas.
Solid: Solids have a highly ordered arrangement of particles, with strong intermolecular forces and fixed positions of atoms or molecules.
Liquid: Liquids have less order compared to solids, as particles have more freedom of movement while still maintaining close proximity to one another.
Gas: Gases have the highest degree of disorder among the three phases. Gas particles are widely spaced, move freely, and lack a definite shape or volume.
To know more about Solid, here
brainly.com/question/20461295
#SPJ4
What will happen to a red blood cell placed in a solution of 90 water and 10 salt.
Answers
Answer:
Explanation:
A red blood cell placed in a solution of 90% water and 10% salt will experience osmosis. Osmosis is the diffusion of water across a semi-permeable membrane from an area of high water concentration to an area of low water concentration. The red blood cell's membrane is semi-permeable, which means that it allows small molecules like water to pass through, but not larger molecules like salt.
In this scenario, the red blood cell is placed in a solution that has a lower water concentration than the cell's internal environment. Therefore, water will move from inside the cell to the outside of the cell through the semi-permeable membrane, in an attempt to balance the concentration of water on both sides of the membrane.
As a result, the red blood cell will swell and eventually burst if the concentration difference is too high. This process is called hemolysis.
It's important to note that this is an oversimplified representation of a real-world scenario, as the red blood cells are not only affected by osmosis, but also by other factors such as the pH of the solution, the presence of other dissolved substances, and the mechanical forces acting on the cells.
Please! I need help
Describe how water molecules can hydrate various substances.
Answers
Answer:
The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. ... As a result of water's polarity, each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds.
Explanation:
Not my work, but I hope this helps!
the half-life of cobalt-60 is 5.3 years, while that of strontium-90 is 28 years. suppose that samples of cobalt-60 and strontium-90 are such that they initially have the same activity (number of decays per second). what is true about the initial numbers of cobalt-60 and strontium-90 nuclei in these samples?
Answers
The true about the initial numbers of the cobalt-60 and the strontium-90 nuclei in the samples is There will more strontium-90 than the cobalt-60 nuclei. The correct option is A.
In the 28 years of the strontium 90 it posses the 50 % of original atoms. The cobalt 60 will have over the five of the half lives. The percent of the cobalt 60 atoms remains is 128 atoms.
128 / 2 = 64 , That means after first half life only 50 % of the cobalt 60 atoms remains.64 / 2 = 32, That means after 2nd half life only 25 % of the cobalt - 60 atoms remains.32 / 2 = 16 , That means after 3rd half life only 12.5 % of the cobalt 60 atoms remains.16 / 2 = 8 , That means after 4th half-life only 6.25 % of the cobalt 60 atoms remains.8 / 2 = 4, That means after 5th half life only 3.12 % of the cobalt 60 atoms remains.Thus, There will more the strontium-90 than the cobalt-60 nuclei. The correct option is A.
To learn more about half-life here
https://brainly.com/question/30518617
#SPJ4
This question is incomplete, the complete question is :
The half-life of cobalt-60 is 5.3 years, while that of strontium-90 is 28 years. suppose that samples of cobalt-60 and strontium-90 are such that they initially have the same activity (number of decays per second). what is true about the initial numbers of cobalt-60 and strontium-90 nuclei in these samples?
A. There will be more strontium-90 than cobalt-60 nuclei.
B. There will be equal numbers of cobalt-60 and strontium-90 nuclei.
C. There will be more cobalt-60 than strontium-90 nuclei.
D. It is not possible to compare the number of nuclei without knowing the masses of the samples.
No underwater luminaires shall be installed in a permanently-installed swimming pool that operates on supply circuits over ? between conductors.
Answers
No luminaires shall be installed for operation on supply circuits over 150 volts between conductors. Luminaires mounted in walls shall be installed with the top of the luminaire lens not less than 450 mm (18 in.)
In an electrical installation, what is a luminaire?
A luminaire, also known as a light fixture, is a complete lighting assembly that includes one or more lamps (light bulbs or tubes), a socket and other protective elements, wiring that links the lamp to a power source, and a reflector to help direct and spread the light.
The construction, installation, or inclusion of shades or guards on luminaires is required to prevent the exposure of combustible materials to temperatures above 90°C (194°F). Unswitched lamp holders must be used above materials that are very flammable.
Learn more about luminaire from
brainly.com/question/4333610
#SPJ4
Which set shows the physical states of water, H2O, in order according to the increasing energy of particle motion
Answers
Hydrogen and oxygen are elements and make up the chemical molecule water. Reverse chemistry, in general, decomposes substances into their constituent parts. As an illustration, the process of electrolysis allows the complex water to be broken down into the components hydrogen and oxygen.
What is chemical molecule ?Chemists investigate the chemical, physical, and physical characteristics of matter. Anything that takes up space and has mass is considered to be matter, which is what they are made of. Like peanuts, people, and postage stamps, gold and iridium are all examples of matter. Matter includes pollution, smoke, and hysteria. However, matter does not exist in energy, light, or sound, and neither do concepts or feelings.The amount of matter that makes up an object's mass. It is important to distinguish between an object's mass and weight since weight is a force brought on by the object's gravitational pull. Unaffected by an object's position, mass is one of its fundamental properties.In terms of physics, the force needed to change the speed or direction of an item is directly inversely related to its mass. Essential Skill 1 includes a more thorough explanation of the distinctions between weight and mass, as well as the units used to measure them (Section 1.9). Contrarily, an object's weight changes according to its location. Because the gravitational pull of the moon is around one-sixth as strong as that of Earth, an astronaut with a mass of 95 kg only weights about 35 lb there instead of 210 lb there. Weight and mass are frequently used interchangeably in laboratories for practical purposes.To Learn more About chemical molecule refer To:
https://brainly.com/question/475709
#SPJ4
A fecal transplant can work to cure a patient infected with a very harmful bacteria, such as C. difficile, in many
different ways
Subclaim 1: Bacteria from the fecal transplant can fill up the space in the gut, limiting the food and space for
invading harmful bacteria.
Revise your paragraph that supports the subclaim above. Include evidence and explain how your evidence supports
this subclaim.
Answers
Answer:
I believe it is subclaim 1. If you think it through enough, it starts to make sense, that's how I got the answer. Have a nice day, God bless.
the reaction for the oxidation of nh3 is given as: 4 nh3 5 o2 → 4 no 6 h2o under certain conditions the reaction will proceed at 29.8% yield of no. how many grams of nh3 must be made to react with excess oxygen to yield 70.5 g of no?
Answers
134g of NH3 is required to react with excess oxygen to make 70.5 g of NO
We need to prepare 70.5 of NO given that the percent yield is 29.8%. Therefore, the molar mass of NO is 30g/mol. Then, the number of moles of NO in 70.5g is given by,
Moles of NO = 70.5/30
Moles of NO = 2.35moles
The actual yield of NO is 2.35 moles. Then theoretical yield can be computed as follows,
The percent yield of NO=( actual yield of NO/theoretical yield of NO ) x 100
Theoretical yield of NO = (actual yield/percent yield/100)
On supplying the values we get,
Theoretical yield= 2.35/0.298
Theoretical yield = 7.88 moles
The reaction is given by
4NH₃+SO₂ ---------> 4NO + 6H₂O
4 moles of Ammonia are required to make 4 moles of NO. Then, moles of NO equals moles of NH₃ which is 7.88
Then molar mass of NH₃ = 17g/mol
Mass of NH₃ = molar mass x no of moles
Mass of NH₃ = 17x7.88
Mass of NH₃ = 134g.
Therefore 134g of NH3 is required to make 70.5g of NO.
To know more about actual yield, click below:
https://brainly.com/question/25996347
#SPJ4
can someone help me with this! because it have no idea what i’m doing feel free to solve anyone of these. THANK YOU
Answers
Answer:
1. 250 J
2. 500000 J
3. 146250 J
4. 400 J
Explanation:
1. Determination of the energy of the ball.
Mass (m) = 5 Kg
Velocity (v) = 10 m/s
Energy (E) =?
E = ½mv²
E = ½ × 5 × 10²
E = 2.5 × 100
E = 250 J
2. Determination of the energy of the rock.
Mass (m) = 250 Kg
Height (h) = 200 m
Acceleration due to gravity (g) = 10 m/s²
Energy (E) =?
E = mgh
E = 250 × 10 × 200
E = 500000 J
3. Determination of the energy of the car.
Mass (m) = 1300 Kg
Velocity (v) = 15 m/s
Energy (E) =?
E = ½mv²
E = ½ × 1300 × 15²
E = 650 × 225
E = 146250 J
4. Determination of the energy of the bullet.
Mass (m) = 0.005 Kg
Velocity (v) = 400 m/s
Energy (E) =?
E = ½mv²
E = ½ × 0.005 × 400²
E = 0.0025 × 160000
E = 400 J
Answer:
Sorry for the late answer but
Number 1 is 250 J
Number 2 is 500000 J
Number 3 is 146250 J
Number 4 is 400 J
Explanation:
goo bl, kang js, cho sb (2015) treatment of early-stage erythematotelangiectatic rosacea with a q-switched 595-nm nd:yag laser. j cosmet laser ther 17(3):139–142
Answers
The article "Treatment of early-stage erythematotelangiectatic rosacea with a Q-switched 595-nm Nd:YAG laser" by Goo BL, Kang JS, Cho SB (2015) focuses on the use of a specific laser, the Q-switched 595-nm Nd:YAG laser, for treating early-stage erythematotelangiectatic rosacea.
The study is published in the Journal of Cosmetic and Laser Therapy, volume 17, issue 3, pages 139-142. The mentioned article investigates the effectiveness of using a Q-switched 595-nm Nd:YAG laser in the treatment of early-stage erythematotelangiectatic rosacea, a common skin condition characterized by facial redness and visible blood vessels. The study aims to evaluate the outcomes of this laser treatment modality.
The Q-switched 595-nm Nd:YAG laser is a specific type of laser that emits light at a wavelength of 595 nanometers (nm). This particular wavelength is targeted at the blood vessels and redness associated with rosacea, aiming to reduce the visible signs and symptoms.
The authors likely conducted a clinical study involving patients with early-stage erythematotelangiectatic rosacea and assessed the efficacy of the laser treatment. The article may include details on the treatment protocol, the number of sessions, the outcomes observed, and any side effects or complications reported.
Overall, this study contributes to the understanding of the use of the Q-switched 595-nm Nd:YAG laser as a potential treatment option for early-stage erythematotelangiectatic rosacea, providing insights into its effectiveness and potential benefits for patients with this condition.
To learn more about rosacea, here
https://brainly.com/question/31631139
#SPJ4
When performing an extraction with between an aqueous solution and organic solution what determines which layer ends up the bottom layer in the separatory funnel ?.
Answers
When performing an extraction between an aqueous solution and an organic solution or organic compound, density will determine the layer ending up at the bottom of the separation funnel.
In chemistry, a separatory funnel is a kind of funnel that separates two immiscible liquids.
It is a transparent funnel and when two immiscible liquids i.e aqueous and organic solution is poured into it, and then allowed to stand, after a while a distinguished layer is formed setting them apart from each other.
Due to the difference in density, the extraction becomes easier as the aqueous layer has a low density and stays at the top while the organic layer is at the bottom.
If you need to learn more about organic compounds click here:
https://brainly.com/question/19083306
#SPJ4
Based on the magnetic field lines shown, what is the orientation of the mystery magnet?
N-S
None of the above.
S-N
Cannot be determined.
Answers
is your answer question yes
In the following reaction, is aluminum being oxidized or reduced? 4Al (s) + 3O2(g) → 2Al2O3(s)
Answers
Answer:
oxidized
Explanation:
The oxidation number of an uncombined element is 0, so the oxidation of aluminum in the reactants is 0.
The oxidation number of aluminum in aluminum oxide is +3.
This means the oxidation number of aluminum is increasing, and thus electrons are lost. This means that aluminum is being oxidized.
in this experiment, you used 45.0 ml of 1.00 m hcl in each trial. calculate the mass of mg that would produce the maximum amount of heat with 45.0 ml of 1.00 m hcl. the molar mass of magnesium is 24.305 g/mol.
Answers
The mass of magnesium that would produce the maximum amount of heat is 0.547 grams.
The chemical reaction between magnesium and HCl is
Mg + 2 HCl → MgCl₂ + H₂
In stoichiometry, the Avogadro's law said that the coefficient for every subtances in the reaction is the ratio for the number of moles for every subtances.
For HCl
The volume = V = 45.0 mL = 0.045 LThe molarity = M = 1.00 MThe number of molesn = MV
n = 1.00 × 0.045
n = 0.045 mol
For Mg
The molar mass = Mr = 24.305 grams/molThe number of molesn Mg : n HCl = 1 : 2
n Mg = n HCl ÷ 2
n Mg = 0.045 ÷ 2
n Mg = 0.0225 molThe mass of Mg
m = n × Mr
m = 0.0225 × 24.305
m = 0.547 grams
Learn more about stoichiometry here: https://brainly.com/question/26873446
#SPJ4
which element of the lanthanides series has the largest atomic radius
Answers
Answer:
Lathanum
Explanation:
This unit discusses in detail the role of catalysts to lower the activation energy of reactions. The term catalyst appears in nonscientific discussions to refer to something that provokes or speeds significant change or action. Consider this example from the 2006 Associated Press article "Chernobyl cover-up a catalyst for glasnost":
"For the Soviet Union, Chernobyl was a catalyst that forced the government into an unprecedented show of openness that paved the way for reforms leading to the Soviet collapse"
Discuss how this scientific term has made its way into common usage. Does the term catalyst carry the same meaning in regular usage? How is it used differently in a scientific context compared to a nonscientific contexte
Answers
Answer:
It can be brought into regular conversation easily I feel it means to "provoke" or "speeds significant change or action" I can see someone saying that in a conversation, "chlorine acts as a catalyst promoting the breakdown of ozone".
I would say it would take the same meaning depending on how you say it and when and what the context of what you're saying it in.
For scientists, it means to change quickly. For someone who says it in a conversation may be saying to stop provoking someone.
Explanation:
What is science? Why do you think science is important?
Answers
Answer:
As scientist discovered that Science is the method of learning everything about the natural world.
An important role in science is to ask questions to get much more know to the topic.
Science is important to the natural world.
Science is the systematic study of the natural world through observation, experimentation, and analysis, aiming to understand its underlying principles and laws.
What is science?Science is the systematic and empirical study of the natural world and its phenomena through observation, experimentation, and the formulation of testable hypotheses. It aims to uncover the underlying principles and laws that govern the universe and provides a methodical approach to understanding, explaining, and predicting various aspects of the world around us. Science covers a wide range of disciplines, from physics and chemistry to biology, psychology, and beyond, and it plays a crucial role in advancing knowledge, technology, and society.
Science is important because it drives progress, expands knowledge, and improves lives by providing evidence-based solutions to complex problems. It fosters innovation, informs decision-making, and enhances our understanding of the universe and ourselves.
Read more about science here: https://brainly.com/question/28416408
#SPJ6
A Brønsted-Lowry acid Question 9 options: A) has a lower pH than vinegar. B) is any species that donates a proton. C) is any species that accepts a proton. D) is limited to aqueous solutions.
Answers
Answer:
B) is any species that donates a proton.
Answer:
A Brønsted-Lowry acid is any substance (molecule or ion) that can donate a hydrogen ion (H+).
A Brønsted-Lowry base is any species that can accept a hydrogen ion (H+).
Explanation:
In short, acids have the ability to donate protons and bases have the ability to accept protons.
Take the following reaction for example:
H2SO4+NH3⇌NH+4+HSO−4
Sulfuric acid (H2SO4) is the Brønsted-Lowry acid because it donates a hydrogen ion. Ammonia (NH3) is the Brønsted-Lowry base because it accepts the hydrogen ion.
The Brønsted-Lowry theory also introduces the concept of conjugate acid-base pairs. A conjugate acid-base pair are two species that differ by a (H+) ion.
Based on the reaction above, the ammonium ion
(NH+4) is the conjugate acid of the base ammonia and the hydrogen sulfate ion (HSO−4) is the conjugate base of sulfuric acid.
Here's a tip to let you know which substance is the conjugate acid and which substance is the conjugate base:
A conjugate base has one less (H+) proton than the acid you started with.
A conjugate acid has one more (H+) proton than the base you started with.
So option c is correct
Is any spcies that denotes a proton
Explanation:
A collection of 6. 25×1018 electrons has the charge of.
Answers
Answer:
Explanation:
1)The charge of one electron is given by
1 e = - 1.6 * 10-19 C
Then – 1 C = 1 e / ( 1.6 * 10-19 )
= 6.25 * 1018 e
So one-coulomb charge has 6.25 * 1018 electrons
2)Let q1 and q2 be two charges separated by a distance r
Then q1 = - 40 µC = - 40 * 10-6 C
And q2 = 108 µC = 108 * 10-6 C
The collection of 6.25 × 10¹⁸ electrons has a charge of approximately 0.100125 coulombs.
Let's break down the calculation step by step;
Charge of an Electron: The charge of a single electron is approximately 1.602 × 10⁻¹⁹ coulombs. This value represents the fundamental charge carried by an electron.
Number of Electrons: You have a collection of 6.25 × 10¹⁸ electrons. This number tells us how many electrons are present in the collection.
Calculating Total Charge: To find the total charge of the collection of electrons, we need to multiply the number of electrons by the charge of each electron:
Total charge = Number of electrons × Charge of each electron
Total charge = 6.25 × 10¹⁸ electrons x 1.602 × 10⁻¹⁹ C/electron
Calculating the Product: Multiply the numerical values and add the exponents:
Total charge = 1.00125 x 10⁻¹ C.
Final Result: The calculated total charge is approximately 0.100125 coulombs
So, the collection of 6.25 × 10¹⁸ electrons has a charge of approximately 0.100125 coulombs. This means that the combined effect of the individual charges of the electrons in the collection results in an overall charge of 0.100125 coulombs.
To know more about electrons here
https://brainly.com/question/28977387
#SPJ3
How many grams of K,0 will be produced from 0.50g of K and 0.10g of Oy, given the
following equation?
4K + 02 + 2K,0
Answers
From the stoichiometry of the reaction, the mass of K2O produced is 0.58 g/
What is a chemical reaction?A chemical reaction is one in which two or more substances are able to combine to lead to the formation of something new.
In this case, the reaction equation is; 4K + 02 -----> 2K20.
Number of moles of K = 0.50g/39 g/mol = 0.013 moles
Number of moles of O2 = 0.10g/32 g/mol = 0.0031 moles
If 4 moles of K reacts with 2 moles of O2
0.013 moles moles of K reacts with 0.013 moles * 2 moles/ 4 moles
= 0.0065 moles
Hence, O2 is the limiting reactant
1 mole of O2 yields 2 moles of K2O
0.0031 moles of O2 yields 0.0031 moles * 2 moles/ 1 mole
= 0.0062 moles
Mass of K2O = 0.0062 moles * 94.2 g/mol
= 0.58 g
Learn more about stoichiometry:https://brainly.com/question/9743981
#SPJ1
A balanced chemical equation always obeys law of conservation of ___.
Answers
A balanced chemical equation always obeys law of conservation of mass.
A balanced chemical equation generally obeys to law of conservation of mass. As per this regulation the mass of items should be equivalent to the mass of reactants. A response is supposed to be adjusted when the complete mass of particles on the two sides of the substance response is equal.According to the law of conservation of mass, the mass of the items in a synthetic response should rise to the mass of the reactants.
The law of conservation of mass is helpful for various computations and can be utilized to tackle for obscure masses, such how much gas consumed or delivered during a reaction.They should submit to the Law of conservation of Mass that expresses that matter can't be made or obliterated, it is saved. The mass of the reactants should rise to the mass of the products.Thus, the mass of substances created in a synthetic response is consistently equivalent to the mass of responding substances. Consequently, you really want to have a similar number of each kind of component on each side of a synthetic condition. This is the entire reason for adjusting a synthetic condition.
To know more about balanced chemical equation,visit here:
https://brainly.com/question/28294176
#SPJ4
Moving electrons are found to exhibit properties of.
Answers
Answer:
both particles and waves
Explanation:
this is known as wave-particle duality.
I hope this helps.
Have a nice day.
A ____________ is required to transfer dna sequences from one organism to another.
genomic library
genetic probe
vector
restriction endonuclease
reporter gene
Answers
A nurse is collecting a stool specimen of a client suspected of having clostridium difficile. Which guideline is recommended for this procedure?
Answers
The guideline that is recommended for a nurse who is collecting a stool specimen of a client suspected of having clostridium difficile includes the following procedures:
1. Use a new pair of gloves for each step in the process of specimen collection, removing the old gloves each time.
2. A bedpan is provided by the nurse for the client to have a bowel movement.
3. The bedpan is then thoroughly washed, disinfected, and dried.
4. The client's buttocks are washed with warm, soapy water and dried with a clean towel.
5. The nurse wears gloves to remove the stool specimen from the bedpan.
6. The specimen is placed in a sterile container and taken to the laboratory as soon as possible.
7. The nurse takes care to avoid touching any part of the specimen container that will come in contact with the laboratory personnel.
The nurse should adhere to standard infection control procedures to protect both the nurse and the client from potential infection. The nurse should make certain to wash their hands before and after the procedure. A stool sample is usually the best way to confirm the diagnosis of Clostridium difficile infection. It can be challenging to diagnose C. difficile infection in the early stages.
To know more about clostridium difficile visit
https://brainly.com/question/13552507
#SPJ11
What is the poh of a solution with a ph of 1.30? PLZZ ANSWER
Answers
Answer:
12.70
Explanation:
Write a chemical equation for solid zinc hydrogen carbonate decomposing to yield solid zinc carbonate, water, and carbon dioxide gas.
Answers
The chemical equation for solid zinc hydrogen carbonate decomposing to yield solid zinc carbonate, water, and carbon dioxide gas can be represented as: Zn(HCO3)2(s) → ZnCO3(s) + CO2(g) + H2O(l)
In this reaction, the solid zinc hydrogen carbonate decomposes into solid zinc carbonate, carbon dioxide gas, and water. Zinc hydrogen carbonate is an unstable compound that breaks down into its constituent compounds upon heating. The decomposition of zinc hydrogen carbonate produces carbon dioxide gas, which is released into the atmosphere, and water, which remains as a liquid. Solid zinc carbonate is also produced as a byproduct of the reaction.
Overall, this reaction involves the breakdown of a solid carbonate compound into simpler compounds, releasing carbon dioxide gas in the process. The chemical equation provides a useful way to represent this reaction, allowing us to predict the products of the reaction and understand the chemical changes that occur.
To learn more about chemical equation visit;
https://brainly.com/question/30087623
#SPJ11
4. Juan tiene un cilindro de 40 libras herméticamente cerrado con gas propano y lo conecta mediante una válvula a otro cilindro de 100 libras completamente vacío. Si Juan abre la válvula del cilindro de 40 dejando pasar el gas al de 100. responda
¿Qué cantidad de gas propano le haría falta al cilindro de 100 y por qué?
Answers
Answer:
Ver explicacion
Explanation:
Cuando el cilindro de 40 libras está conectado al cilindro de 100 libras, generamos una presión que continúa hasta que los dos cilindros alcanzan la misma presión de gas en equilibrio. Recuerde que el cilindro de 100 libras estaba inicialmente vacío. Esto significa que su presión inicial es 0. El cilindro de 40 libras ya estaba lleno, por lo que dividimos esta cantidad en dos para tener en cuenta su distribución entre los dos cilindros.
Ahora tenemos 20 libras de gas propano presentes en cada cilindro. La implicación de esto es que, en el cilindro de 100 libras, necesitamos 80 libras adicionales para completar las 100 libras.