# The strength of H2O2 (in g/ litre) in 11.2 volume solution of H2O2 is?

Grade:11

## 1 Answers

Umakant biswal
5349 Points
8 years ago
@rithesh
volume strength is an outdated term referring to the volume of oxygen gas liberated from 1 volume of h2o2 solution .
for example – if the volume strength is 20 volume , it means that 1 cm3 of h2o2 will produce from 20 cm3 of oxygen gas .
acc to the equation
2 moles of h2o2 = 22.4 L of oxygen at STP .
so, by that first of all u have to calculate the MOLARITY of the solution .
and use the formula
moles of solute / volume of solution
and the volume of solution is given as 11.2
and u ned to calculate the no of moles .
and use the formula
mass/ molar mass , or given mass / molar mass
and findout the no of moles ,
THE STRENGTH CAN BE CALCULATED BY THE FOLLOWING FORMULA
11.2 * MOLARITY OF THE SOLUTION .
from the prev formula , u find molaritty and apply it here , u will get the strength
HOPE IT CLEARS YOUR DOUBT
IF U NOT ABLE TO FIND THE ANSWER , THEN LET ME KNOW
ALL THE BEST ..

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