____ is strength in %W/V of 40 volume containing H_2O_2 solution.

1.	____ is strength in %W/V of 40 volume containing H_2O_2 solution.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`{:(2H_2O_2 to , 2H_2O+ O_2),("68gm","volume at 1 <a href="https://interviewquestions.tuteehub.com/tag/mol-1100196" style="font-weight:bold;" target="_blank" title="Click to know more about MOL">MOL</a> <a href="https://interviewquestions.tuteehub.com/tag/stp-633132" style="font-weight:bold;" target="_blank" title="Click to know more about STP">STP</a> =22.4 litre"):}` <br/> 1 mol `O_2` at STP = 1 mol `H_2O_2` <br/> `therefore` 22.4 litre `O_2` from 68 gm of `H_2O_2` <br/> `therefore` 40 litre `O_2` x gm <br/> `therefore 22.4/40 = 68/x` <br/> `therefore x=(68xx40)/22.4`=121.42 gm/L `H_2O_2` <br/> `therefore H_2O_2` %W/V = `121.42/10`=12.14</body></html>

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