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100mL of om at STP was passed through 10...

100mL of om at STP was passed through 100 ml of 10 volume `H_(2)O_(2)`solution. What is the volume strength of `H_(2)O_(2)` after the reaction?

A

9.5

B

9

C

4.75

D

4.5

Text Solution

Verified by Experts

The correct Answer is:
A
`H_2O_2 + O_3 to H_2O + 2O_2`
initial `M_(H_2O_2) = 10/11.2 = 10/11.2 M`
number of moles of `O_2 = 0.1/22.4`
number of moles of `O_2 = 10/11.2 xx 0.1`
According to stoichiometric equation
on mole of `H_2O_2` produce 1 mole of `O_3` number of moles of `H_2O_2` consumed
`=1/224," remains" = 19/224`
one molarity = 11.2 (W/V)%
`19/224 xx 0.1 --------- ?`
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