For gases n∝V:
CO2 is absorbed by KOH. So the remaning product is only CO. moles of CO formed from both reactions =201+201=101
Left mass of CO = moles×molar mass
=101×28
=2.8g
A mixture of 2.3g formic acid and 4.5g oxalic acid is treated with concentrate H2SO4. The evolved gaseous mixture is passed through KOH pellets. What will be the weight in grams of the remaining product at STP?
Held on 30 Apr 2018 · Verified 9 Jul 2026.
2.8
3.0
1.4
4.4
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