# H2O2 density is known Density = 1.02 g/mL Theoretical moles of O2 = H2O2 volume * H2O2 density *...

## Question:

{eq}H_2O_2{/eq} density is known Density = 1.02 g/mL

Theoretical moles of {eq}O_2 = H_2O_2{/eq} volume {eq}\times H_2O_2{/eq} density {eq}\times{/eq} mol {eq}H_2O_2 \div{/eq} g {eq}H_2O_2 \times{/eq} 1 mol {eq}O_2 \div{/eq} 2 mol {eq}H_2O{/eq} mol {eq}H_2O_2 \div{/eq} g {eq}H_2O_2{/eq} is reciprocal of the molar mass {eq}H_2O_2{/eq}.

First write the molar mass of {eq}H_2O_2{/eq} then the reciprocal molar mass of {eq}H_2O_2{/eq}= X g {eq}H_2O_2 \div{/eq} 1 mol {eq}H_2O_2{/eq} molar mass of {eq}H_2O_2{/eq} reciprocal = X.

## Reciprocal mass and calculations

The density of a compound is its mass divided by the volume of the solution. The molar mass of a compound is the mass of each individual element present in that compound (per mole). A reciprocal mass would be equivalent to 1 divided by the mass. These calculations can be conducted based on experimental parameters such as volume of solution and moles generated of a product.

The molar mass of {eq}H_2O_2{/eq} is 34.01 g/mol.

The reciprocal molar mass is:

{eq}1 \div 34.01 = 0.0294{/eq}g