InterviewSolution
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InterviewSolution
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A mixture of CO and `CO_2` having a volume of 30 mL is mixed with x " mL of " `O_2` and electrically sparked. The volume after explosion is `(20+x)` mL under the same condition. What would be the residual volume if 45 " mL of " the original mixture is treated with aueous NaOH? (a). 10 mL (b). 20 mL (c). 30 mL (d). mL |
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Answer» `CO(g)+(1)/(2)O_2(g)toCO_2(g)` `"Final"-(x-(y)/(2))mL ymL` `CO_2(g)+O_2(g)to` no reaction `underline("Total volume of gases left"=(30-y)+(x-(y)/(2))+y=(20+x))` `thereforey=20mL` In `45 mL, V_(CO)=(20)/(30)xx45=30mL` and `V_(CO_2)=45-30=15mL` Only `CO_2` reacts with `NaOH`, so `15 " mL of " CO_2` reacts. `therefore` reasidual volume `V_(CO)=30mL` |
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