in a reaction 4.0g of sodium carbonate were reacted with 10g of hydrochloric acid. The product was a mixture of 2.5g of carbon dioxide and 11.5g of sodium chloride.

Asked by rjinaaishu007 | 10th Feb, 2020, 07:05: PM

Expert Answer:

The reaction is:
 
sodium space carbonate space space plus space hydrochloric space acid space space space rightwards arrow space space sodium space chloride space plus space space carbon space dioxide space
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Mass of reactants = 4+10 = 14 gm
 
Mass of products = 11.5 + 2.5 = 14 gm
 
The mass of reactants is equal to the mass of the products. Therefore the given data is in agreement with law of conservation of mass.

Answered by Varsha | 11th Feb, 2020, 11:29: AM