Mole ConceptHard
Question
A volume of 50 ml of ‘20 vol’ H2O2 solution is mixed with 50 ml of ‘10 vol’ H2O2 solution. The volume strength of the resulting solution is (assume neither expansion nor contraction in volume of solution, on mixing)
Options
A.‘30 vol’
B.‘10 vol’
C.‘15 vol’
D.‘22.5 vol’
Solution
50 × 20 + 50 × 10 = 100 × V ⇒ V = 15
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