# Problem: Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g/mL.)

###### FREE Expert Solution
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###### FREE Expert Solution

We’re being asked to calculate the molarity (M) of a hydrogen peroxide (H2O2) solution

Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). In other words:

We’re given the mass percent of H2O2 in water, 3.0%. Recall that mass percent is given by:

This means in 100 g of solution, we have 3.0 g H2O2

The steps we need to do for this solution are:

Step 1: Calculate the moles of H2O2

Step 2: Calculate the volume of the solution (in L).

Step 3: Calculate the molarity of the solution.

83% (398 ratings)
###### Problem Details

Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g/mL.)

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Calculate Molarity concept. You can view video lessons to learn Calculate Molarity. Or if you need more Calculate Molarity practice, you can also practice Calculate Molarity practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofHousehold hydrogen peroxide is an aqueous solution containin...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 5 minutes and 8 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Thavarajah's class at TORONTO.