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.)

Molarity of this solution is 0.88 M

Explanation:

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

where,

Given : 3.0 g of hydrogen peroxide is present in 100 g of solution.

n = moles of solute =

= volume of solution in ml=

Now put all the given values in the formula of molarity, we get

Thus molarity of this solution is 0.88 M

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.