A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H₂SO₄. The evolved gaseous mixture is passed through KOH pellets. Weight (in gram) of the remaining product at STP will be

1.4

3.0

4.4

2.8

Solution

2.8

$H C O O H \to_{D e h y d r a t i n g A g e n t}^{H_{2} S O_{4}} C O + H_{2} O W a t e r i s a b o s r b e d b y s u l p h u r i c a c i d (M o l e s)_{i} = \frac{2.3}{46} = \frac{1}{20} 0 0 (m o l e s)_{f} = 0 \frac{1}{20} \frac{1}{20} H_{2} C_{2} O_{4} \overset{H_{2} S O_{4}}{\to} C O + C O_{2} + H_{2} O W a t e r i s a b o s r b e d b y s u l p h u r i c a c i d (M o l e s)_{i} = \frac{4.5}{90} = \frac{1}{20} 0 0 0 (m o l e s)_{f} = 0 \frac{1}{20} \frac{1}{20} \frac{1}{20}$

CO₂ is absorbed by KOH.
So the remaining product is only CO.
moles of CO formed from both reaction
= $= \frac{1}{20} + \frac{1}{20} = \frac{1}{10}$

Let mass of CO = moles x molar mass

= $= \frac{1}{10} x 28$

Some More Questions From Chemical Kinetics Chapter

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?

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Chemical Kinetics

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H₂SO₄. The evolved gaseous mixture is passed through KOH pellets. Weight (in gram) of the remaining product at STP will be

1.4

3.0

4.4

2.8

Some More Questions From Chemical Kinetics Chapter

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?

What will be the effect of temperature on rate constant?

A reaction is 50% complete in 2 hours and 75% complete in 4 hours. What is the order of the reaction.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Chemical Kinetics

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H2SO4. The evolved gaseous mixture is passed through KOH pellets. Weight (in gram) of the remaining product at STP will be 1.4 3.0 4.4 2.8

Some More Questions From Chemical Kinetics Chapter

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?

What will be the effect of temperature on rate constant?

A reaction is 50% complete in 2 hours and 75% complete in 4 hours. What is the order of the reaction.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H₂SO₄. The evolved gaseous mixture is passed through KOH pellets. Weight (in gram) of the remaining product at STP will be

1.4

3.0

4.4

2.8