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Q.

Volume strength of 10%(w/v) H2O2 is approximately

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a

100

b

20

c

3.036

d

50

answer is C.

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Detailed Solution

10 volume strength of large xrightarrow{gives} 10ml of O2

??ml of H2O2 solution large xrightarrow{gives} 1000ml of O2

large frac{1000 times 1}{10} = 100ml of H2O2 solution

large 2H_2O_2 xrightarrow{Delta} 2H_2O_2+O_2

2 moles                           1mole

large 2times34gr ----------------- 22400ml = 22.4lit

??                 ------------------ 1000ml

large frac{2 times 34 times 1000}{22400} = 3.03gr[w/v%]

large therefore 10 vol.strength of H2O2 means = 100ml of H2O2 solutions

= 3.03gr[w/v%] of H2O2 solution.

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Volume strength of 10%(w/v) H2O2 is approximately