The **molarity** is obtained as moles of solute in 1 L (1000 mL) of solution. In your case, 1 L of solution contains 300 g of **H2O2** (PM=34.01 g/mol). Therefore, the **molarity** is (300 g/34.01 g/mol) = 8.82 M.

Similarly, what is the molarity of 100 ml of a 3.0 h2o2 solution? The 3% mass/**volume** H2O2 means 3 g of H2O2 in **100 ml** of water. **Molarity** = 0.066 mol / 0.100 L = 0.66 M.

In this regard, what is a 3 solution of hydrogen peroxide?

To make a gallon of **3**% **peroxide**: In a clean gallon container, combine 1 and ¼ cups of 35% food grade **hydrogen peroxide** with 14 and ¾ cups of water. To make **3**% **hydrogen peroxide** from 35% **hydrogen peroxide**, the general mixing guideline is: 1 part 35% **hydrogen peroxide** plus 11 parts water = **3**% **hydrogen peroxide**.

How do you find the concentration of hydrogen peroxide?

**The classical methods for measuring hydrogen peroxide concentration are :**