A 50.0 mL volumetric flask filled with aqueous solution of

hydrogen peroxide has a total mass of 88.5 g. The mass of the

volumetric flask is 16.5 g. What is the density of the aqueous

solution of hydrogen peroxide?

_g/mL

1.44g/mL

Explanation:

Data obtained from the question include:

Volume of volumetric flask = 50mL

Mass of volumetric flask + hydrogen peroxide = 88.5g

Mass of volumetric flask = 16.5g

Mass of Hydrogen peroxide = 88.5 - 16.5 = 72g

The density of aqueous hydrogen peroxide can be obtained as shown below:

Mass of Hydrogen peroxide = 72g

Volume of Hydrogen peroxide = 50mL

Density = ?

Density = Mass / volume

Density = 72/50

Density = 1.44g/mL