The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the reaction given below. In an experiment, the decomposition of hydrogen peroxide yielded 75.3 mL of gas collected over water at 25°C and 0.976 atm. (Pwater = 0.032 atm at 25°C)2 H2O2(aq) → 2 H2O(l) + O2(g)If the original H2O2 solution had a volume on 500 mL, what was the molar concentration of hydrogen peroxide prior to decomposition?                         A)    1.8 * 10-4 M                                B)    0.058 M                        C)    0.0062 M                        D)    0.060 M                        E)    0.012 M

Question
Asked Dec 6, 2019
101 views

The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the reaction given below. In an experiment, the decomposition of hydrogen peroxide yielded 75.3 mL of gas collected over water at 25°C and 0.976 atm. (Pwater = 0.032 atm at 25°C)

2 H2O2(aq) → 2 H2O(l) + O2(g)

If the original H2O2 solution had a volume on 500 mL, what was the molar concentration of hydrogen peroxide prior to decomposition? 

                        A)    1.8 * 10-4 M       
                        B)    0.058 M
                        C)    0.0062 M
                        D)    0.060 M
                        E)    0.012 M

check_circle

Expert Answer

Given:

Volume of hydrogen peroxide=75.3 mL

Temperature= 25oC

Pressure=0.976 atm

Volume of original hydrogen peroxide=500 mL

Pressure of water=0.032 atm

Conversion:

From mL to litres:

Volume of hydrogen peroxid...

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: If 3.34 mol of an ideal gas has a pressure of 2.56 atm and a volume of 67.09 L, what is the temperat...

A: If 3.34 mol of an ideal gas has a pressure of 2.56 atm and a volume of 67.09 L, then the temperature...

question_answer

Q: What is the energy required to convert 2.3 mol of water at 35°C to steam at 110°C?  Specific heats: ...

A: Click to see the answer

question_answer

Q: Which of the following is the correct VSEPR structure for ClF3?     Select one: B D C A

A: VSEPR Theory: As the name itself indicates that the basis for this theory is the electron pair that ...

question_answer

Q: Search. ellum.ecollege.com/course.html?courseld3D154322748HepID=2b3e48e6520860bfd5591538a4a5a27b#100...

A: The expression used to calculate the new volume of the balloon V2  is labeled in equation (2).

question_answer

Q: How much time would it take for 325 mg of copper solid (atomic molar mass = 63.546 g/mol) to be elec...

A: Two moles of electrons give one mole of copper atom. Number of electrons required is determined as f...

question_answer

Q: Consider the following reaction: Cd(s) + Fe2+(aq) → Cd2+(aq) + Fe(s) E o      (Fe2+ / ...

A: Half-cell reactions are given by,

question_answer

Q: How many moles of fluoride ions are present in 11.5 g of NaF?

A: The molar mass of NaF can be calculated as

question_answer

Q: Find logarithms of the following numbers. Use the correct number of significant figures in your answ...

A: Hi there! Since you have posted multiple questions, we will answer the first question for you. If yo...

question_answer

Q: Suppose  26.8g  of sodium bromide is dissolved in  350.mL  of a  0.50 M  aqueous solution of s...

A: The number of moles AgNO3 in 0.50 M 350 mL solution (n1) is calculated using equation (1) in which n...