Percentage strength of 56 volume H2O2 solution is
5
10
7
17
Answers
the answer will be 10 percent
We have to find percentage strength of 56 volume of H2O2 solution.
solution : we know,
volume strength = 11.2 × molarity
so, molarity = volume strength/11.2
= 56/11.2
= 5
molarity of solution is 5 M , it means 5 moles of H2O2 in 1 litre of solution.
if density of solution is 1 g/cm³
mass of solution = 1000 cm³ × 1g/cm³ = 1000g
mass of solute = moles × molecular mass
= 5 × 34
= 170g
now percentage strength (w/W) = mass of solute/mass of solution × 100
= 170g/1000g × 100
= 17 %
Therefore percentage strength of 56 volume H2O2 solution is 17 %.
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