Question

a 500.0g sample of an aqueous hydrogen peroxide contains 31.50 hydrogen peroxide by mass find the mass of hydrogen peroxide in the solution find the mass of water in the solution

Answer 1

mass of hydrogen peroxide = 31.50% × 500.0 g = 157.5 g

To find the mass of water in the solution, we can subtract the mass of hydrogen peroxide from the total mass of the sample:

mass of water = total mass of sample - mass of hydrogen peroxide

mass of water = 500.0 g - 157.5 g

mass of water = 342.5 g

Therefore, the mass of hydrogen peroxide in the solution is 157.5 g, and the mass of water in the solution is 342.5 g.