﻿ How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol? How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol? 52.8 kJ 11.5 kJ 86.7 kJ 39.9 kJ 18.9 kJ - AssignmentGrade.com

# How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol? How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol? 52.8 kJ 11.5 kJ 86.7 kJ 39.9 kJ 18.9 kJ

QUESTION POSTED AT 18/04/2020 - 06:20 PM

86.7 kJ

### Further explanation

Given:

Molar mass (Mr) of ethanol = 46.07 g/mol

Question:

How much energy is required to vaporize 98.6 g of ethanol (C₂H₅OH) at its boiling point?

The Process:

Observe this . This means that 40.5 kJ of energy is required to vaporize every 1 mole of ethanol at its boiling point. Therefore we must first convert grams into moles.

Question:

Step-1:

Let us count the number of moles of 98.6 g of ethanol.

We obtain 2.14 moles of ethanol.

Step-2:

Let us calculate how much energy is required to vaporize 2.14 moles of ethanol at its boiling point.

The amount of energy required is

Thus, the amount of energy required to vaporize 98.6 g of ethanol at its boiling point is 86.7 kJ.

- - - - - - -

Quick Steps

1. Determine the mass of aspirin from the number of molecules brainly.com/question/10567477
2. Write the equilibrium constant for the reaction  brainly.com/question/10608589
3. The chemical problem of mixed concentration brainly.com/question/7596086

Keywords: how much, energy required, to vaporize, ethanol, C₂H₅OH, its boiling point, ΔHvap, molar mass, moles, converts, kJ/mol

## Related questions

### What volume of 0.3682 M H2SO4 solution is required to react with 0.4198 grams of Al(CN)3 according to the reaction, 2 Al(CN)3 + 3 H2SO4  6 HCN + Al2(SO4)3?

QUESTION POSTED AT 02/06/2020 - 01:34 AM

### If two atoms are bonded with a bond energy of 87 kJ, what must be done to break the bond? A. 87 kJ of energy must be added B. The energy must be decreased by 87 kJ. C. The bond order has to be higher. D. No energy should come out or go in.

QUESTION POSTED AT 01/06/2020 - 04:38 PM

### Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to react completely with 7.25 liters of hydrogen gas? Show all of the steps taken to solve this problem. (4 points) Balanced equation: 2H2 (g) + O2 (g) yields 2H2 O(g)

QUESTION POSTED AT 01/06/2020 - 04:31 PM

### According to Coulomb’s law, which ionic compound A–D has the smallest electrostatic potential energy (i.e., closest to zero)? The size of the anion increases in the order F < Cl < Br < I.

QUESTION POSTED AT 01/06/2020 - 04:24 PM

### Why do electrons enter the 4s orbital before entering the 3d orbital? because the 3d orbital is at a lower energy level because both the 4s and 3d orbitals are at the same energy level because the 4s orbital is at a lower energy level because the 4s orbital is at a higher energy level

QUESTION POSTED AT 01/06/2020 - 04:13 PM

### Which of the following are potential benefits of wind turbines? (may be more than one answer) A. viable source of power B. creates less pollution C. is expensive to set up D. is a renewable energy source

QUESTION POSTED AT 01/06/2020 - 04:07 PM

### Which arrows represents the phase transitions in which he's energy is gained

QUESTION POSTED AT 01/06/2020 - 04:03 PM

### At what temperature is the boiling point of this substance

QUESTION POSTED AT 01/06/2020 - 04:02 PM

### Describe geothermal energy and give one advantage and one disadvantage of its use.

QUESTION POSTED AT 01/06/2020 - 03:51 PM

### In which device is chemical energy transformed into electrical energy? A battery B hair dryer C television D hydroelectric plant

QUESTION POSTED AT 01/06/2020 - 03:40 PM

### What happens when an electron moves from a higher energy level to a lower one

QUESTION POSTED AT 01/06/2020 - 03:34 PM

### A compound differs from a mixture because it a. always remains frozen even at high temperatures. b. is formed from two cations. c. always contains the same elements in the same proportion. d. can form only in the presence of heat energy.

QUESTION POSTED AT 01/06/2020 - 03:27 PM

### The “fatal flaw” in Rutherford’s model of the atom was the idea that if the electrons were ________. orbiting the nucleus, changing direction and thus giving off energy, the electrons would lose all energy and collapse into the nucleus moving so rapidly, they would spiral away from the nucleus and be lost not moving, they could not maintain their distance from the nucleus located too far from the nucleus, they would not be attracted

QUESTION POSTED AT 01/06/2020 - 03:27 PM

### When an electron jumps from a high energy state to a lower state, what form does the emitted energy take?

QUESTION POSTED AT 01/06/2020 - 03:25 PM

### In order for a liquid particle to become a gas it must, (choose all that apply) !!!! A overcome the attractive forces of other liquid particles B overcome the attractive forces of other gas particles C gain energy D lose energy Please help??

QUESTION POSTED AT 01/06/2020 - 03:00 PM

### Which term is used to describe the amount of heat that is required to melt 1 mol of a substance? A. molar mass B.specific heat C. heat of fusion D. heat of vaporization

QUESTION POSTED AT 01/06/2020 - 02:57 PM

### Which expression represents the ∆H for a chemical reaction in terms of the potential energy, PE, of its products and reactants? A) PE of products + PE of reactants B) PE of products – PE of reactants C) PE of reactants × PE of products D) PE of products ÷ PE of reactants E) PE of reactants – PE of products

QUESTION POSTED AT 01/06/2020 - 02:51 PM

### (20 POINTS) Easy Chemistry Question

QUESTION POSTED AT 01/06/2020 - 02:42 PM

### Given the following reactions and subsequent ∆H values what is the ∆H for the reaction below? Zn(s) + 1/8S8(s) + 2O2(g) → ZnSO4(s) Given: Zn(s) + 1/8S8(s) → ZnS(s) ∆H = -183.92kJ 2ZnS(s) + 3O2(g) → 2ZnO(s) + 2SO2(g) ∆H = -927.54kJ 2SO2(g) + O2(g) → 2SO3(g) ∆H = -196.04kJ ZnO(s) + SO3(g) → ZnSO4(s) ∆H = -230.32kJ Answers options: A) 244.01 kJ B) 488.02 kJ C) -488.02 kJ D) -976.03 kJ E) 976.03 kJ

QUESTION POSTED AT 01/06/2020 - 02:34 PM

### How is water different from most liquids? It expands when it freezes. It contains chemical bonds. It has ionic and covalent bonds. It boils when it is heated.

QUESTION POSTED AT 01/06/2020 - 02:33 PM

### Write a balanced chemical equation for the fermentation of sugar (c12h22o11) by yeasts in which the aqueous sugar reacts with water to form aqueous ethyl alcohol (c2h5oh) and carbon dioxide gas.

QUESTION POSTED AT 01/06/2020 - 01:25 PM

### When 2.50 g of methane burns in oxygen, 125 kj of heat is produced. what is the enthalpy of combustion per mole of methane under these conditions?

QUESTION POSTED AT 01/06/2020 - 01:15 PM

### The average daily diet of an adult woman is 2.4×103kcal. the molar mass of atp is 507 g/mole. part a if all the energy in her diet is converted to atp, how many kg of atp are synthesized in one day?

QUESTION POSTED AT 01/06/2020 - 12:47 PM

### How does the energy released in a nuclear reaction get created? A. By an endothermic reaction occurring B. By the mass of the nucleus getting smaller C. By bonds being created between two atoms D. By water turning into hydrogen and oxygen

QUESTION POSTED AT 01/06/2020 - 12:28 PM

### If 2.0 moles of A and 3.0 moles of B react according to the hypothetical reaction below, how many moles of the excess reactant will be left over at the end of the reaction? A + 2B → AB2 (3 points) 1.0 mol B left over 0.50 mol A left over 1.5 mol B left over 1.5 mol A left over

QUESTION POSTED AT 01/06/2020 - 12:20 PM

### Determine how many moles of Ba(OH)2 are required to completely neutralize 0.427 mole of HC2H3O2.

QUESTION POSTED AT 01/06/2020 - 12:07 PM

### Which reaction produces the most energy per mass? fission fusion chemical ionization

QUESTION POSTED AT 29/05/2020 - 05:02 PM

### Unsaturated hydrocarbons require a _____ to react.

QUESTION POSTED AT 29/05/2020 - 04:56 PM

### A mixture of H2 and water vapor is present in a closed vessel at 20°C. The total pressure of the system is 755.0 mmHg. Partial pressure of water vapor at 20°C equals 17.5 mmHg. What is the partial pressure of H2?

QUESTION POSTED AT 29/05/2020 - 04:34 PM

### Which of the following elements has its highest energy electrons in an "s" atomic orbital? radiium (Ra) neon (Ne) aluminum (Al) lanthanum (La)

QUESTION POSTED AT 29/05/2020 - 04:28 PM