A mixture of 2 . 3 g formic acid and 4 . 5 g oxalic acid is treated with concentrate H 2 SO 4 . The evolved gaseous mixture is passed through KOH pellets. What will be the weight in grams of the remai

Question

A mixture of 2 . 3 g formic acid and 4 . 5 g oxalic acid is treated with concentrate H 2 SO 4 . The evolved gaseous mixture is passed through KOH pellets. What will be the weight in grams of the remaining product at STP ?NEET 2018

TestHub · Accepted Answer

For gases n ∝ V : CO 2 is absorbed by KOH . So the remaning product is only CO . moles of CO formed from both reactions = 1 20 + 1 20 = 1 10 Left mass of CO = moles × molar mass = 1 10 × 28 = 2 .8 g

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