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A mixture of formic acid and oxalic acid is heated with concentrated H 2 SO 4 . The gas produced is collected and on its treatment with KOH solution the volume of the gas decreased by one-sixth. Calculate the molar ratio of the two acids in the original mixture.

 


A mixture of formic acid and oxalic acid is heated with concentrated H2SO4. The gas produced is collected and on its treatment with KOH solution the volume of the gas decreased by one-sixth. Calculate the molar ratio of the two acids in the original mixture.

Grade:11

2 Answers

askiitian.expert- chandra sekhar
10 Points
11 years ago

Hi NIKIT,

let x moles of formic acid.... and y moles of oxalic acid......

then CO produced from formic acid is x moles

and y moles of CO and y moles of CO2 from oxalic acid.

KOH ansorbs only CO2

therefore the ratio of volume absorbed by KOH is y/(x+2y)

y/(x+2y)=1/6

6y=2y+x

4y=x

therefore x:y=4:1

Derma G
9 Points
2 years ago
Where or from which book did you find this question? please reply as soon as possible, its quite urgent to know about it.                                                                   

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