How does doubling [RXI affect the rate of an E1 reaction? Select the single best answer. a) rate doubled b) no change c) rate quadrupled d) rate halved
Answers
Doubling the concentration of the reactant (RX) in an E1 reaction will lead to the rate being doubled. So, the correct answer is a) rate doubled.
In an E1 reaction, the rate depends on the concentration of the substrate (RX), and when you increase the concentration, the rate will increase proportionally. When a reactant (R) undergoes ionization to yield a carbocation intermediate (R+), an E1 reaction occurs. For example, the rate of an E1 reaction is affected by the doubling of [RXI] in the following ways: the rate is doubled.
The rate of the E1 reaction depends only on the formation of a carbocation intermediate and is unaffected by the nucleophile or its concentration. When the concentration of the alkyl halide is increased, the rate of the E1 reaction is found to increase. Thus, in the case of the E1 reaction, the rate of reaction is directly proportional to the concentration of the alkyl halide.
Therefore, the rate of an E1 reaction is directly proportional to the concentration of the alkyl halide. If the concentration of the alkyl halide is doubled, the rate of the E1 reaction will double. Therefore, the correct answer is (a) rate doubled.
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Related Questions
Calculate the volume, in liters, occupied by 0.960 mol of oxygen gas at STP.
Answers
Answer:
21.504 liters
Explanation:
Given: 0.960 mol
Volume: ?
Molar Volume at STP = 22.4 liters
0.960 mol × 22.4 L/ 1 mol =
0.960 × 22.4 L = 21.504 L
2. What are the units for the mass of a solid? mass of a liquid?
Answers
Answer:
I'm not sure myself but I'd say mass since it's a solid
All of the following species contain N-O bond(s): NO-, NO2-, NO3-Draw the Lewis structure(s) for each, then answer the following questionsWhich has the strongest N-O bond? --A. NO⁻B. NO₂⁻C. NO₃⁻Which has the longest N-O bond? --A.NO⁻B.NO₂⁻C. NO₃⁻
Answers
A chemical bond is an attraction between atoms and ions that holds them to form new molecules or crystals. The bond between one species and another differs in strength and length.
In NO bonds, the more oxygens it contains the more spread out their electron density. The more oxygen atoms cause the bond order to decrease, resulting in this conclusion: the higher the bond order, the stronger and the shorter the bond. NO₃⁻ contains more oxygen, thus it has the longest and the weakest N-O bond.
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First to answer gets brainliest, please and thank you.
Answers
The molarity of sodium hydroxide involved in the neutralization reaction is 0.251 M.
How to calculate molarity?The molarity of a solution can be calculated using the following expression;
CaVa = CbVb
Where;
Ca and Va = concentration and volume of the phosphoric acid respectivelyCb and Vb = concentration and volume of sodium hydroxide respectivelyAccording to this, 43.8mL of sodium hydroxide reacts with 15.7 mL of 0.700M phosphoric acid. The molarity of sodium hydroxide can be calculated as follows:
0.700 × 15.7 = 43.8 × Cb
10.99 = 43.8Cb
Cb = 10.99 ÷ 43.8
Cb = 0.251 M
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How is it possible to change the shape of your molecular models without breaking any of the covalent bonds?
Answers
Answer:
A molecule's shape strongly affects its physical properties and the way it interacts with other molecules, and plays an important role in the way that biological molecules (proteins, enzymes, DNA, etc.) interact with each other.
Explanation:
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, by rotation of molecule or bond , we can change the shape of molecule.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.
The compound that is ionic in nature can be dissociated very easily in water. Since ionic compounds are polar in nature, they readily dissolve in water. To change the shape of your molecular models without breaking any of the covalent bonds is by rotating the molecule or a bond.
Therefore, by rotation of molecule or bond , we can change the shape of molecule.
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Significant figures or digits tell us how precise or exact a measurement is
When adding or subtracting, round the answer to the fewest number of decimal places. When multiplying or dividing, round the answer to the fewest significant figures. How would we round
0. 045 g / 721. 3 mL
Answers
When performing mathematical operations involving measurements, it is important to use the appropriate number of significant figures to ensure the accuracy and precision of the result.
When dividing two measurements, the quotient should have the same number of significant figures as the measurement with the fewest significant figures in the calculation. The given values are 0.045 g / 721.3 mL.
To calculate this, we need to perform division as:0.045 g/721.3 mL = 6.236×10^−5 g/mL (to five significant figures).
Therefore, the answer would be 6.236 × 10^−5 g/mL.
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What is the charge of a lithium ion
Answers
Answer:
+1
Explanation:
lithium is in group 1 of the periodic table and all group 1 elements have a charge of +1
if a hydrogen atom has its electron in the =5 state, how much energy, in electronvolts, is needed to ionize it? energy required to ionize the atom: ev
Answers
The energy required to ionize a hydrogen atom is 0.544 electronvolts (eV).
What is ionization energy?
Ionization energy, also known as ionization potential, is the amount of energy required to remove an electron from an atom or a positively charged ion. It is the minimum energy necessary to completely remove an electron from its orbital and create a positively charged ion.
To determine the energy required to ionize a hydrogen atom when its electron is in the n=5 state, we need to find the energy difference between the n=5 energy level and the ionization energy level, where the electron is completely removed from the atom.
The ionization energy of a hydrogen atom can be calculated using the formula:
Ionization Energy = \(\frac{-13.6 eV }{n^2}\)
Where n is the principal quantum number of the energy level.
For the n=5 energy level, the ionization energy would be:
Ionization Energy = \(\frac{-13.6 eV}{5^2}\)
Ionization Energy =\(\frac{ -13.6 eV}{25}\)
Ionization Energy = -0.544 eV
Since the energy values are typically expressed as positive values, we can take the absolute value of the result:
Ionization Energy = |-0.544 eV|
Ionization Energy = 0.544 eV
Therefore, the energy required to ionize a hydrogen atom when its electron is in the n=5 state is 0.544 electronvolts (eV).
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PPPPPPPPLLLLLLLLLSSSSSS HHHHHHEEEEEELLLLPPPPP!!!!!!!!!!!!!!
Answers
Answer:
B
Explanation:
The student is not able to move the box in D --> 55N, 0N. Since the net force is 0, it means that no force is being applied. So you will choose answer B from your options.
Hope this helps, thank you !!
Give a scenario in which a good conductor in heat would come in handy.
Answers
What is the poh of a solution with a ph of 1.30? PLZZ ANSWER
Answers
Answer:
12.70
Explanation:
draw the organic product formed when 1−hexyne is treated with h2o, h2so4, and hgso4. click the draw structure button to launch the drawing utility.
Answers
The organic product formed when 1−hexyne is treated with H₂O, H₂SO₄, and HgSO₄ will be 2-hexanone (structure attached).
This reaction is an example of an oxymercuration reaction of the organic product 1−hexyne.
Oxymercuration is shown in three steps to the right. The nucleophilic double bond attacks the mercury ion, releasing an acetoxy group. The mercury ion's electron pair attacks carbon on the double bond, generating a positive-charged mercuronium ion. Mercury's dxz and 6s orbitals give electrons to the double bond's lowest unoccupied molecular orbitals.
In the second stage, the nucleophilic H₂O attacks the highly modified carbon, freeing its mercury-bonding electrons. Electrons neutralize mercury ions by collapsing. Water molecules have positive-charged oxygen.
In the third stage, the negatively charged acetoxy ion released in the first step attacks the hydrogen of the water group, generating the waste product HOAc. The two electrons in the oxygen-hydrogen link collapse into oxygen, neutralizing its charge and forming alcohol.
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A drinking glass and a tightly sealed jar sit on the kitchen counter. both are half-filled with water and are undisturbed for several hours. will the liquid and water vapor establish equilibrium in either container? explain your answer
Answers
A tightly sealed jar will form liquid and water equilibrium but the drinking glass will not.
Will the liquid and water vapor establish equilibrium in either container?The liquid and water vapor establish equilibrium in a tightly sealed container but not in the drinking glass because in the tightly sealed jar, the water can't go into the atmosphere but in the drinking glass the water will evaporate.
So we can conclude that a tightly sealed jar will form liquid and water equilibrium but the drinking glass will not.
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In need of help
The system below was at equilibrium in a
3.5 L container. What change will occur
for the system when the container is
expanded to 12.75 L?
2SO₂(g) + O₂(g) = 2SO3(g) + 198 kJ
Hint: How many moles of gas are on each side?
A. The reactions shifts to
the right (products) to
produce fewer moles of
gas.
B. The reactions shifts to
the left (reactants) to
produce more moles of
gas.
C. There is no change
because there are the
same number of moles of
gas on both sides.
Answers
A mole of one element contains _______ number of atoms as a mole of another element.
Answers
A mole of one element contains Same number of atoms as a mole of another element.
The atomic mass of an element, that is found on the periodic table, may be used to determine the amount of moles in a system. Typically, this mass represents the average of the element's abundant forms found on earth. The mass of an element is given as the average of all of its earthly isotopes. The molar mass of a material is the weight of a mole of that substance. In chemistry, the molar mass is frequently used in converting grams of a chemical to moles. The periodic table lists an element's molar mass, which is its atomic weight in grams per mole (g/mol).
The average mass of an element's atoms expressed in atomic mass units is known as its atomic mass (amu, also known as daltons, D). The weight of the each isotope is combined by its abundance to get the atomic mass, which is a weighted average of all the isotopes of that element.
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the pKa of benzotriazole is ?
Answers
The pKa of benzotriazole is approximately 1.8. This means that in a solution with a pH of 1.8 or lower, most of the benzotriazole molecules will be protonated (have a positive charge).
As the pH of the solution increases, the number of protonated benzotriazole molecules decreases, and more of the molecules become neutral. This change in protonation state can affect the chemical properties and reactivity of benzotriazole.
For example, at low pH, benzotriazole may act as a weak acid and donate a proton to a base. At higher pH, benzotriazole may be more likely to form a complex with a metal ion. Understanding the pKa of a molecule like benzotriazole is important for predicting how it will behave under different conditions and in different chemical reactions.
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how would you define a system to determine the rate at which an automobile adds carbon dioxide to the atmosphere
Answers
I would determine the rate at which an automobile adds carbon dioxide to the atmosphere by taking an open system, a control volume just around the area of the outlet where the exhaust gases are released. The boundaries are the sides (for example) of the pipe through which the gas is released.
A general study says that a typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. This makes possible assumption that the average gasoline vehicle on the road today has a fuel economy of about 22.0 miles per gallon and drives around 11,500 miles per year. Each and every gallon of gasoline burned creates about 8,887 grams of CO₂.
The amount of CO₂ can be calculated by the above given process.
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how does the density of a gas depend on temperature?
Answers
Answer:
the higher the temperature the more molecules are spread out and the lower density,high pressure means high density please make it a brainlist answer
molecules move in random directions when heated in a heat engine, and because of the lack of uniformity in direction of molecular movement, true or false
Answers
The statement "molecules move in random directions when heated in a heat engine, and because of the lack of uniformity in the direction of molecular movement" is true.
When a heat engine is heated, molecules absorb heat energy and their kinetic energy increases. The kinetic energy of molecules causes them to move around. However, this movement is not uniform, and the molecules move in random directions.
A heat engine is a device that converts thermal energy into mechanical energy. Heat engines operate on the principle of thermodynamics.
They work by taking in thermal energy from a high-temperature reservoir, converting some of it into mechanical energy, and then releasing the remaining thermal energy to a low-temperature reservoir.The internal combustion engine in a car, the steam engine in an old locomotive, and the turbine in a power plant are all examples of heat engines. They all convert heat energy into mechanical energy to perform work.
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Using immunoprecipitation, you can isolate a protein (protein X) you think is involved in chronic myelogenous leukemia (CML), which is caused, in part, by a hyperactive tyrosine protein kinase called ABL. You think one of the targets of ABL is the protein X that you can purify. In comparing tissues with and without the disease, you subject the samples to isoelectic focusing. Understanding how IEF works, how would you expect the samples with CML to migrate compared to the wild type, non-diseased sample protein?
A. The phosphorylated protein will have a lower isoelectric point and thus migrate further toward the anode.
B. The phosphorylated protein will be more attracted to the negative charge on the anode.
C. The non-phosphorylated proteins from the non-diseased samples will move further to the anode without the bulky phosphate group attached to a tyrosine.
D. Non-diseased proteins will migrate with a lower pl than those from diseased tissues and thus the samples from the non-diseased samples will migrate more to the anode than diseased protein.
Answers
The non-phosphorylated proteins from the non-diseased samples will move further to the anode without the bulky phosphate group attached to a tyrosine. The correct option is C.
Isoelectric focusing (IEF) is a technique used to separate proteins based on their isoelectric points (pI), which is the pH at which a protein has a net neutral charge. During IEF, proteins migrate in an electric field through a pH gradient until they reach a region of the gel where the pH matches their individual pI, resulting in immobilization.
In the context of chronic myelogenous leukemia (CML), where the hyperactive tyrosine protein kinase ABL is involved, the phosphorylation of proteins plays a significant role. Phosphorylation refers to the addition of a phosphate group to a protein. Phosphorylated proteins generally have a different charge distribution compared to non-phosphorylated proteins.
In this scenario, it is likely that protein X, which is suspected to be a target of the hyperactive ABL kinase, would be phosphorylated in the samples with CML. The addition of a phosphate group to the protein alters its charge distribution, leading to a change in its pI. Therefore, the phosphorylated protein X would have a different pI compared to the non-phosphorylated form.
Given this information, we can deduce that the non-phosphorylated proteins from the non-diseased samples would have a lower pI compared to the phosphorylated protein X from the CML samples. Consequently, the non-phosphorylated proteins would migrate further toward the anode in the isoelectric focusing process, as they would be attracted to the region of the gel with a higher positive charge.
This aligns with option C, which states that non-phosphorylated proteins from the non-diseased samples would move further to the anode without the bulky phosphate group attached to a tyrosine.
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TNT is manufactured by the reaction of toluene with nitric acid according to the following equation: C7H8 (l) + 3 HNO3 (aq) ---> C7H5(NO2)3 (s) + 3 H2O(l)
Calculate the mass of TNT expected from the reaction of 69.0 g of toluene
Answers
Answer:
170. g C₇H₅(NO₂)₃
General Formulas and Concepts:
Chemistry - Stoichiometry
Reading a Periodic TableUsing Dimensional AnalysisExplanation:
Step 1: Define
RxN: C₇H₈ (l) + 3HNO₃ (aq) → C₇H₅(NO₂)₃ (s) + 3H₂O (l)
Given: 69.0 g C₇H₈ (Toluene)
Step 2: Identify Conversions
Molar Mass of C - 12.01 g/mol
Molar Mass of H - 1.01 g/mol
Molar Mass of N - 14.01 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of C₇H₈ - 7(12.01) + 8(1.01) = 92.15 g/mol
Molar Mass of C₇H₅(NO₂)₃ - 7(12.01) + 5(1.01) + 3(14.01) + 6(16.00) = 227.15 g/mol
Step 3: Stoichiometry
\(69.0 \ g \ C_7H_8(\frac{1 \ mol \ C_7H_8}{92.15 \ g \ C_7H_8} )(\frac{1 \ mol \ C_7H_5(NO_2)_3}{1 \ mol \ C_7H_8} )(\frac{227.15 \ g \ C_7H_5(NO_2)_3}{1 \ mol \ C_7H_5(NO_2)_3} )\) = 170.085 g C₇H₅(NO₂)₃
Step 4: Check
We are given 3 sig figs. Follow sig fig rules and round.
170.085 g C₇H₅(NO₂)₃ ≈ 170. g C₇H₅(NO₂)₃
Which is evidence of climate-forced sea level rise submerging of low islands and coastlines decreased temperature of oceans temperature changes for surface currents increased carbon dioxide in the atmosphere
Answers
Answer: Ocean rise?
Explanation:
Answer:
submerging of low islands and coast lines
Explanation:
earth science climate change unit test
which term names an environmental cost of fossil fuel consumption
Answers
Question 3 of 10
How would one make a 2 M solution of a compound?
A. By dissolving 2 moles of the compound in 1 L of water
B. By dissolving 1 molar mass of the compound in 2 L of water
C. By dissolving 1 mole of the compound in 2 L of water
D. By dissolving 2 g of the compound in 1 L of water
Answers
A solution at 25°C is 1.0 x 10^-5 M H3O+. What is the concentration of OH- in this solution
Answers
Answer:
1.0 × 10–9 M OH–
Explanation:
pH = -Log[H+]
pOH = -Log[OH-]
But;
pH + pOH = 14
Therefore;
[H+] + [OH-] = 1.0 × 10^-14 M
Therefore;
[OH-] = 1.0 × 10^-14 M - (1.0 × 10^–5 M)
= 1.0 × 10^-9 M OH–
because the environments in which they created change constnanly, mass comunication theories are said to be
Answers
Because the environments in which they created change constantly, mass communication theories are said to be dynamic.
What are the four mass communication theories?
Authoritarian theory, libertarian theory, social responsibility theory, and soviet media theory are the "original" four theories of the mass communication.
Analysis of extensive information exchanges is the focus of the discipline of study known as mass communication. There are numerous theories of mass communication, all of which place emphasis on the speaker, media sources, audience, and other pertinent elements.
Theories of mass communication are important because they shed light on how people utilize, interact with, and distribute media. These theories offer a framework for comprehending the impact that the messages in media may have on audiences. For professionals in professions like marketing, broadcasting, journalism, or related ones, mass communication theories may be useful.
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When 10 grams of sugar are dissolved in 1 l of water, is the solvent and is the solute.
Answers
When 10 grams of sugar are dissolved in \($1 \mathrm{~L}$\) of water, water is the solvent and sugar is the solute.
When 10 g of sugar is dissolved in 1 L of water, the solvent is and the solute is. The solute in this solution is sugar, while the solvent is water. Simply because sugar is solid at ambient temperature and water is liquid. Sugar molecules take up space between water molecules when they dissolve in water.
As a result, they take up no more room. As a result, the volume of the solution remains constant.
When sugar and water are combined, a clear solution results from the development of a homogeneous solution between the sugar and water. The sugar grains are tiny and dissociate or fragment further when dissolved.
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Plzzzzz I need help ASAP
Answers
Answer:
i) B, ii) A, iii) C
Explanation:
give me brainliest
calculatr the total heat absorbed by the 5.0 gram sample of ammonia during the time interval ab your response ust both include a correct numerical setup and a correct numerical setup for the calculated resukt
Answers
The total heat absorbed by the 5.0-gram sample of ammonia during the time interval is 735.7 J.
Given that the mass of ammonia (NH3) sample is 5.0 g.
The time interval absorbed is 11.0 seconds. The enthalpy change of the calorimeter is -14.2 J/°C.
The specific heat of the calorimeter is 8.2 J/g°C.
Therefore, the total heat absorbed by the 5.0-gram sample of ammonia during the time interval is;
ΔT = T final − T initial(25.5 °C − 21.3 °C) = 4.2°
Cheat absorbed = (5.0g) (4.2°C) (35.1 J/g°C)
heat absorbed = 735.7 J
The total heat absorbed by the 5.0-gram sample of ammonia during the time interval is 735.7 J.
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Describe how temperature changes
from the interior of the Sun through its
atmospheric layers.
Answers
Answer:
The Sun's temperature, which reaches around 15 million degrees Celsius in its core, steadily decreases with distance from the core, falling to 6000°C at its 'surface'. ... Instead, it rises to about 10,000°C in the chromosphere, and exceeds a million degrees Celsius in the corona.
Explanation: