Hydrogen peroxide, a disinfectant, contains 3.0% (w/w) hydrogen peroxide in water. This means there are 3.0 grams of hydrogen peroxide in every 100. grams of solution. Assuming this solution has a density of 1.00 g/mL, what is the molar concentration of this solution

The molar concentration of hydrogen peroxide solution is 0.882 M

Explanation:

We are given:

3.0% (w/w) hydrogen peroxide solution

This means that 3.0 grams of hydrogen peroxide is present in 100 grams of solution

To calculate the volume of solution, we use the equation:

Density of solution = 1 g/mL

Mass of solution = 100.0 g

Putting values in above equation, we get:

To calculate the molarity of solution, we use the equation:

Given mass of hydrogen peroxide = 3.0 g

Molar mass of hydrogen peroxide = 34 g/mol

Volume of solution = 100 mL

Putting values in above equation, we get:

Hence, the molar concentration of hydrogen peroxide solution is 0.882 M

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