Answers
The ZnCl2 has a mass of 52.4 g.
The mass of NH3 is 12.24 g
How do we obtain it?Knowing that,
Zn number of moles is 25 g/65 g/mol.
= 0.385 mole
If 1 mole of zinc creates 1 mole of zinc chloride
0.385 mole of ZnCl2 is thus created.
ZnCl2 mass produced is 0.385 mole * 136 g/mol.
= 52.4 g
2) The formula for N2's moles is 10g/28 g/mol, or 0.36 moles.
30 moles of H2 are equal to 60 g divided by 2 g/mol.
If 3 moles of H2 and 1 mole of N2 react,
N2 interacts with 0.36 moles at 0.36 * 3/1.
= 1.08 moles
N2 is hence the limiting reactant.
2 moles of NH3 are produced from 1 mole of N2.
The result of 0.36 moles of N2 is 0.36 * 2/1.
= 0.72 moles
NH3 mass equals 0.72 moles times 17 g/mol.
= 12.24 g
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Related Questions
Please fully evaluate the IR spectrum of dibenzalacetone. Please include the IR absoprtion frequencies of the functional groups, type of vibration (bend, stretch), as well as the functional group that caused those frequencies (ketone, aromatic, etc...).
For example:
C-H Stretch
Aromatic
3000-3100 cm-1
Answers
The IR absorption frequencies of the functional groups is follows 3000-3300-Sp2 C-H stretching; 1500-1800-C=O stretching; 1400 -1500-Aromatic C=C stretching; 600-900-Alkene =C-H bending.
A number of steps are used to demonstrate the base-catalyzed aldol condensation synthesis of dibenzalacetone. The electrophilic carbonyl carbon in benzaldehyde is attacked in step one by an acetone anion acting as a nucleophile, resulting in the formation of a hydroxyl ketone.
After the hydroxide exits in step two, a double bond is created. The active nucleophile then transforms into an intermediate and attacks a benzaldehyde to create the second hydroxyl ketone.
In step three, the reaction is repeated, resulting in the formation of a second double bond, dibenzalacetone. There are three possible isomers of dibenzalacetone. Trans, trans (E,E), trans, cis (E,Z), and cis, cis are the three distinct isomers (Z,Z).
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what special equipment did niels bohr use to develop his atomic model?
Answers
Neil Bohr used the fluorescent screen and an alpha particle detector to study the structure of an atom.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
The atom as a whole is neutral and stable due to presence of oppositely charged particles.
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two metals of equal mass but with differing specific heat capacities are subjected to the same amount of heat. which metal will undergo the smallest change in temperature if neither metal changes phase?
Answers
The metal having the greater capacity for specific heat. A metal with a higher heat capacity will take more energy to raise its temperature by one temperature unit.
Can the amount of heat in two things made of the same material at the same temperature differ?As a result, the heat capacity of two objects constructed of the same material but of different masses will vary. This is so because while specific heat is a property of every object constructed of the same material, heat capacity is a property of an object.
Which metal will see the smallest temperature increase?The metal with the highest specific heat will see the smallest temperature change.
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how to figure out how much a mole would weigh?
Answers
how could you/what would you use to try to turn coffee back into water using items you can find at home?
Answers
Answer:
If you want to filter out the grains then certainly you could using normal filter papers in a filter funnel and repeat until the solution is clear of bits. You could also use a sintered glass filter. However, there will still be compounds from the coffee dissolved in the water and so a molecular sieve could be used and/or a chromatography column to separate these from the water. (You could try reverse osmosis if you really want to try an extreme method and have heaps of lab equipment and time). In practice it is probably easier just to distill the water off in the usual chemical lab way. Of course you could drink the coffee and inevitably separate out the water!
The castaways have been on an island for 15 days. They have created a game to pass the time. Each castaway throws a coconut and whoever throws theirs with the highest average speed wins. How many seconds did it take for the third coconut to travel 30 m?
Answers
The answer would be 2.
Basically all you do is t = d/s which means time equals distance divided by speed. And your answer will be 2
What information does a topographical map primarily provide?
Answers
Answer:
A detailed map which shows every feature of the earth accurately including roads, airports, names of places etc is called a topographical map
Explanation:
What volume would 56.2 mL of gas at 820 mm of Hg occupy at 720 mm of Hg?
Answers
Answer:
49.35 mL
Explanation:
Given: 56.2 mL of gas
To find: volume that 56.2 mL of gas at 820 mm of Hg would occupy at 720 mm of Hg
Solution:
At 820 mm of Hg, volume of gas is 56.2 mL
At 1 mm of Hg, volume of gas is \(\frac{56.2}{820}\)
At 720 mm of Hg, volume of gas is \(\frac{56.2}{820}(720)=49.35\,\,mL\)
Can someone plz answer this ASAP
Answers
Answer:
Youngest - limestone with crinoid
2nd - shale with ammonite
3rd - sandstone with trilobite
oldest - conglomerate rock
Explanation:
WILL GIVE BRAINLETS
What is one element a topographic map shows? A.Climate B.Landforms C.Space D.Weather
Answers
Answer:
B
Explanation:
landforms.....this is it
(01.06 LC)
Which statement is true about the substances present in a mixture?
They always consist of the same element.
They are always in the same state of matter.
They can be separated by physical methods.
They can only be separated by chemical methods.
Answers
Answer:
They can be separated by physical methods.
Explanation:
Substances in a mixture are not subjected to anything that may change their chemical structure, so they are physical all throughout the process. Therefore, they can be separated using physical methods.
Answer:
They can be separated by physical methods.
Explanation:
I took the final
2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2O
In the above equation, how many grams of N2 can be made when 5.3 moles of CuO are consumed?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Nitrogen 14
Copper 63.5
Oxygen 16
Question 2
S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O
In the above equation, how many grams of water can be made when 19.5 moles of HNO3 are consumed?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Nitrogen 14
Sulfur 32
Oxygen 16
Question 3
3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O
In the above equation, how many grams of water can be made when 15.4 moles of HNO3 are consumed?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Nitrogen 14
Copper 63.5
Oxygen 16
Question 4
For the reaction C + 2H2 → CH4, how many grams of carbon are required to produce 5.7 moles of methane, CH4 ?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Carbon 12
Answers
Answer:
Explanation:
Question 1:
The balanced chemical equation is:
2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2O
The molar ratio between CuO and N2 is 3:1, which means that for every 3 moles of CuO consumed, 1 mole of N2 is produced.
To find how many grams of N2 can be produced from 5.3 moles of CuO, we need to first calculate how many moles of N2 can be produced:
Moles of CuO = 5.3 mol CuO
Moles of N2 = Moles of CuO / 3 (from the molar ratio)
Moles of N2 = 5.3 mol CuO / 3 = 1.77 mol N2
Now we can use the molar mass of N2 to calculate the mass:
Molar mass of N2 = 14 g/mol
Mass of N2 = Moles of N2 x Molar mass of N2
Mass of N2 = 1.77 mol x 14 g/mol = 24.78 g
Rounded to the nearest tenth, the answer is 24.8 g of N2.
Therefore, 24.8 grams of N2 can be made when 5.3 moles of CuO are consumed.
Question 2:
The balanced chemical equation is:
S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O
The molar ratio between HNO3 and H2O is 6:2, which means that for every 6 moles of HNO3 consumed, 2 moles of H2O are produced.
To find how many grams of H2O can be produced from 19.5 moles of HNO3, we need to first calculate how many moles of H2O can be produced:
Moles of HNO3 = 19.5 mol HNO3
Moles of H2O = Moles of HNO3 x 2/6 (from the molar ratio)
Moles of H2O = 19.5 mol HNO3 x 2/6 = 6.5 mol H2O
Now we can use the molar mass of H2O to calculate the mass:
Molar mass of H2O = 18 g/mol
Mass of H2O = Moles of H2O x Molar mass of H2O
Mass of H2O = 6.5 mol x 18 g/mol = 117 g
Rounded to the nearest tenth, the answer is 117.0 g of H2O.
Therefore, 117.0 grams of H2O can be made when 19.5 moles of HNO3 are consumed.
Question 3:
The balanced chemical equation is:
3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O
The molar ratio between HNO3 and H2O is 8:4, which means that for every 8 moles of HNO3 consumed, 4 moles of H2O are produced.
To find how many grams of H2O can be produced from 15.4 moles of HNO3, we need to first calculate how many moles of H2O can be produced:
Moles of HNO3 = 15.4 mol HNO3
Moles of H2O = Moles of HNO3 x 4/8 (from the molar ratio)
Moles of H2O = 15.4 mol
A liquid that can absorb and release huge amounts of heat energy without much change in the overall temperature of the water has what
A Has a high density capacity
B Has a high surface tension capacity
C Has a high specific leat capacity
D Has a high non-polar capacity
Answers
Answer:
Im pretty sure the answers b
Explanation:
Because if its talking about overall tempature the it means ihas tension with high surface.
what is the iupac name of this element :NaB(OH)4
Answers
The IUPAC name of the compound NaB(OH)4 is sodium tetrahydroxyborate.
What is the iupac name of this element ?
The compound NaB(OH)4 is made up of sodium ions (Na+) and tetrahydroxyborate anions (B(OH)4-).
According to IUPAC naming conventions, the name of an ionic compound is written by listing the cation first, followed by the anion. In this case, the cation is sodium (Na+) and the anion is tetrahydroxyborate (B(OH)4-).
To name the tetrahydroxyborate anion, we start by identifying the boron atom, which has a valency of three. The hydroxide ions (OH-) are then added to balance the charge, resulting in the formula B(OH)4-.
The prefix "tetra-" indicates that there are four hydroxide groups attached to the boron atom. The suffix "-ate" is used to indicate that this is an anion.
Finally, the name of the compound is written as "sodium tetrahydroxyborate" because it contains one sodium cation and one tetrahydroxyborate anion.
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think back to our hypotheses of chapter 12 regarding melting points (that some force kept the material together). given those hypotheses, what would you predict about the forces that hold atoms of cesium together in the solid metal compared to the forces that hold atoms of lithium together? explain why.
Answers
Based on the hypotheses discussed in Chapter 12 regarding melting points and the forces that hold materials together, we can make a prediction about the forces holding atoms of cesium and lithium together in their solid metal forms.
One hypothesis suggests that stronger forces between atoms result in higher melting points. Another hypothesis proposes that metals are held together by metallic bonds, where positively charged metal ions are surrounded by a sea of delocalized electrons.
Considering these hypotheses, we can infer that cesium atoms would be held together by stronger forces compared to lithium atoms in their solid metal forms. This is because cesium is located further down the periodic table, belonging to Group 1 (alkali metals), whereas lithium is in Group 2 (alkaline earth metals). As we move down a group in the periodic table, the atomic radius generally increases, leading to weaker forces of attraction between atoms.
Therefore, the larger atomic size of cesium compared to lithium would result in weaker interatomic forces, making cesium's solid metal form have a lower melting point compared to lithium.
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When logging is carried out in a watershed, a likely effect on the local streams is.
Answers
Answer: A likely effect on the watershed resulting from logging would be increased water temperature.
Explanation: Not only will the removal of trees from the watershed would result in the decrease of Dissolved Oxygen(DO) in the water, but also increase temperature because the leaves of the trees absorb heat, which indirectly decreases the temperature of the river.
help! What is the atomic mass of Carbon dioxide
Answers
Answer:
44
Explanation:
(16 × 2) + (12 × 1)
so basically 32 plus 12 which equals 44
what is 2.5 meters= to mm
Answers
Answer:
2500 mm
Explanation:
2.5 m = 2.5 * 1000 = 2500 mm
Answer:
2500 mm
Explanation:
1 metre = 1000mm
Now,
2.5 metre = 2.5*1000 mm
= 2500 mm
After 50.0 ml of a 0.100 m solution of naoh is added to 50.0 ml of a 0.100 m solution of an unknown acid, the equilibrium ph is basic. what may be concluded about the identity of the acid?
Answers
It is concluded that the identity of the acid must be a weak acid, but it could be either monoprotic, diprotic, or polyprotic.
Reaction :
It is the titration of a weak acid and a strong base.
It is a neutralisation reaction of monobasic acid and monoacidic base (sodium hydroxide).
The determination of a weak acid in a titration is based on its molar mass and pKa (from points on a titration curve), and its approximate melting point.
The relationship between normality and molarity is :
Normality = base acidity x acid molarity.
We can use M1V1 = M2V2.
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How many elements are present in the chemical formula CH,₂,0? +
Answers
The chemical formula CH₂O contains 3 elements: carbon, hydrogen, and oxygen.
How many elements are present in the chemical formula CH,₂,0?The chemical formula CH₂O represents formaldehyde, which is a simple organic compound.
To determine the number of elements in this formula, we count the different types of atoms that are present. In this case, there are three different types of atoms: carbon (C), hydrogen (H), and oxygen (O).
Therefore, the chemical formula CH₂O contains 3 elements: carbon, hydrogen, and oxygen.
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For each event stated, indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium. An up arrow indicates an increase in concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in the concentration.
Answers
What is Le Chatelier's principle?
It is also known as equilibrium law, are used to predict the effect of some changes on a system in chemical equilibriumWhen factors like concentration, pressure, temperature, inert gases that affect equilibrium are changed, equilibrium will shift in that direction where the effects caused by these changes are nullified.1. Increasing concentration of CO:
The concentration of product CO2(g) increases and the concentration of reactants, CO(g) and O2(g) decreases
2. Increasing concentration of CO2:
The concentration of reactants, CO(g) and O2(g) increases and concentration of the product, CO2(g), decreases
3. Decreasing the volume of system: The concentration of the product, CO2(g) increases and the concentration of the reactants, CO(g) and O2(g) decreases
Explanation:
Given reaction: 2CO(g) + O2(g) -->2CO2(g)
1. Increasing concentration of CO:
When the concentration of reactant CO(g), increases; the equilibrium shifts towards the forward direction or product side, thereby increasing the concentration of product, CO2(g) and decreasing the concentration of the reactants, CO(g) and O2(g).
2. Increasing concentration of CO2:
When the concentration of the product CO2(g), increases; the equilibrium shifts towards backward direction or reactant side, thereby increasing the concentration of the reactants, CO(g) and O2(g) and decreasing the concentration of product, CO2(g).
3. Decreasing the volume of the system
When the volume of the system decreases, the pressure increases, thus causing the equilibrium of reaction to shift in a direction that produces less number moles of gas.
Since, total number of moles of gaseous reactants is 3 and products is 2
Therefore, when the volume of system decreases; equilibrium of the reaction shifts towards the forward direction or product side, thereby increasing the concentration of the product, CO2(g) and decreasing the concentration of the reactants, CO(g) and O2(g).
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What is the formula of the Lonic compound formed by the elements lithium and oxygen
Answers
Answer:
Li2O
Explanation:
Lithium is an alkali metal that has three protons and three electrons. Oxygen is a nonmetallic gas that has eight protons and eight electrons. Lithium and oxygen bond to form an ionic compound.
3Li : 1s2 2s1......Li+
8O : 1s2 2s2 2p4.....O2-
If 10 cubic centimeters of a liquid has a mass of
70 grams, what is its density?
A. 0.7 g/cm3
B. 7 g/cm3
C. 70 g/cm3
D. 700 g/cm
Answers
Answer:
V = 10 m³
m = 70 grams
density = ....?
density = m/v
= 70/10
= 7 g/cm³ (B)
How many Hydrogen moles needed to get the energy to equal 1 mol of gasoline?
Answers
Answer:
1 grams Hydrogen is equal to 0.992122546977 mole.
Explanation:
Hydrogen is equal to 0.992122546977 mole.
Which element is classified as a noble gas? HURYYYY PLSSSSSSSS!!!!!!!!!
O
N
CI
Xe
Answers
Answer:
Xe that is xenon
Explanation:
Xe that is xenon
Reason:
Xenon is a member of the zero-valence elements that are called noble or inert gases. It is inert to most common chemical reactions (such as combustion, for example) because the outer valence shell contains eight electrons.
When scientists talk about mass and volume, they are talking about which
of these?
A. energy
B. heat
C. matter
D. a vacuum
Answers
Answer:
C. Matter
Explanation:
Answer:
C. Matter
Explanation:
Matter is anything that occupies space(volume) and has mass.
1. The author says that bog bodies were discovered as long ago as the 1600s, but the only ones existing today are those found after the late 1800s. What hap- pened to the earlier bog bodies?
Answers
Answer:
The earlier bog bodies that were discovered in the 1600s might have not been preserved properly due to a lack of knowledge on how to preserve them or a lack of awareness of their significance. It is also possible that they might have decayed and decomposed over time and not survived till the present day. However, the bog bodies found after the late 1800s were preserved and studied extensively due to the increasing awareness and understanding of their historical and archaeological significance.
Explanation:
Hope this helped!! Have a great day/night!!
? Match the states of matter to their properties. Drag the items on the left to the correct location on the right. solids Indefinite shape, but definite volume liquids indefinite shape and indefinite volume M gases definite shape and definite volume lowest density particles glide past each other highest density Done Try hear
Answers
Answer:
Solids: definite shape and definite volume (highest density)
Liquid: indefinite shape and definite volume (glide past each other)
Gas: indefinite shape and indefinite volume (lowest density)
Explanation:
look at the answer
A 17.50-ml sample of a 0.150 m solution of h3po4 reacts with excess ba(oh)2. what mass of h2o is produced in the reaction?
Answers
Taking into account the reaction stoichiometry, 0.14175 grams of H₂O are formed when a 17.50 mL sample of a 0.150 M solution of H₃PO₄ reacts with excess Ba(OH)₂.
Reaction stoichiometryIn first place, the balanced reaction is:
2 H₃PO₄ + 3 Ba(OH)₂ → Ba₃(PO₄)₂ + 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
H₃PO₄: 2 molesBa(OH)₂: 3 molesBa₃(PO₄)₂: 1 moleH₂O: 6 molesThe molar mass of the compounds is:
H₃PO₄: 98 g/moleBa(OH)₂: 171.34 g/moleBa₃(PO₄)₂: 602 g/moleH₂O: 18 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
H₃PO₄: 2 moles ×98 g/mole= 196 gramsBa(OH)₂: 3 moles ×171.34 g/mole= 514.02 gramsBa₃(PO₄)₂: 1 mole ×602 g/mole= 602 gramsH₂O: 6 moles ×18 g/mole= 108 gramsMoles of H₃PO₄ requiredMolar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
molarity= amount of moles÷ volume
In this case, you know for the reactant H₃PO₄:
molarity= 0.150 Mvolume= 17.50 mL= 0.0175 L (being 1000 mL= 1 L)Replacing in the definition of molarity:
0.150 M= amount of moles÷ 0.0175 L
0.150 M× 0.0175 L= amount of moles
0.002625 moles= amount of moles
So, 0.002625 moles of H₃PO₄ react.
Mass of H₂O formedThe following rules of three can be applied: if by reaction stoichiometry 2 moles of H₃PO₄ form 108 grams of H₂O, 0.002625 H₃PO₄ form how much mass of H₂O?
\(mass of H_{2}O=\frac{0.002625 moles of H_{3}PO_{4} x108 grams of H_{2}O}{2moles of H_{3}PO_{4}}\)
mass of H₂O= 0.14175 grams
Finally, 0.14175 grams of H₂O are formed when a 17.50 mL sample of a 0.150 M solution of H₃PO₄ reacts with excess Ba(OH)₂.
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What is the molar concentration a a 12 % sodium chloride solution (MW 58.5)
Answers
The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.
To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.
First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.
In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.
To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.
We can start by calculating the number of moles of sodium chloride in 12 grams:
Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride
Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles
Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:
Volume of solution = mass of solution / density
Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L
Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:
Molar concentration = moles of solute / volume of solution
Molar concentration = 0.205 moles / 0.1 L = 2.05 M
Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.
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