A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 144 g of solution. The reaction caused the temperature of the solution to rise from 21.00  to 24.70 ∘C. What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water. Enter your answer in kilojoules per mole of compound to three significant figures.

Question
Asked Oct 27, 2019
A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 144 g of solution. The reaction caused the temperature of the solution to rise from 21.00  to 24.70 ∘C. What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
 
Enter your answer in kilojoules per mole of compound to three significant figures.
check_circleExpert Solution
Step 1

m = 144 g

Temperature difference = 24.7 oC -21.00 oC = 3.7 oC

Specific hea...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour*

See Solution
*Response times may vary by subject and question
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: Be sure to answer all parts. Ammonia is produced by the reaction of nitrogen and hydrogen according ...

A: Given:Mass of N2 = 34.0 gMass of H2 = 14.8 gN2(g) + 3H2(g) → 2NH3(g)

question_answer

Q: I am stuck on this problem and could use some guidance. Thanks much.

A: Given,Specific heat capacity of water = 4.184J/g CelsiusLatent heat of vaporization of water = 2260J...

question_answer

Q: 1. The blue color of the sky results from the scattering of sunlight by air molecules. The blue ligh...

A: Given:The frequency of light = 7.5 × 1014 Hz.Calculating the wavelength:Relation between frequency a...

question_answer

Q: If .3 miles of gas is in 50 ml container at 730 mmhg, what is the temperature of the gas?

A: Given:Number of moles = 0.3 molesVolume = 50 mL = 50×10-3 L.Pressure = 730 mmHg = 0.9605 atm

question_answer

Q: Find the pH of each mixture of acids 1. 9.5×10−2 M in HF and 0.220 M in HC6H5O 2. 0.110 M in formic ...

A: 1) The hydrogen concentration of HF and C6H5OH are calculated as,

question_answer

Q: What is the total number on grams of LiBr needed to make 2.4 liters  of a 1.3 molar solution?

A: Given,Volume of LiBr solution = 2.4 LMolarity of LiBr solution = 1.3 M = 1.3 mol/LMoles of LiBr can ...

question_answer

Q: How is energy created in mass conversion ?

A: From the Law of Conservation of energy – energy can neither be created or nor be destroyed, but it c...

question_answer

Q: Given the following data: SrO(s) + CO2(g) → SrCO3(s) ΔH = -234 kJ 2Sr(s) + O2(g) → 2SrO(s) ΔH =...

A: Given:

question_answer

Q: What is the pH of an aqueous solution with a hydrogen ion concentration of [Ht]= 8.3 x 10- M? pH = h...

A: The pH for the given solution is calculated as shown in equation (1) where [H+] is the concentration...