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Q.

If 6.3 g of NaHCO3 are added to 15.0 g CH3COOH solution, the residue is found to weigh 18.0 g. What will be the mass of CO2 released in the reaction?

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a

4.5 g

b

3.3 g

c

2.6 g

d

2.8 g

answer is B.

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Detailed Solution

According to law of conservation of mass, mass of reactants = mass of products∴ 6.3 + 15.0 = 18.0 + xor x = 21.3 - 18.0 = 3.3 g
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