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Q.

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

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a

3.3 g

b

2.8 g

c

2.6 g

d

4.5 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+x                 x=3.3 g

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