Question

In a reaction,4 g of sodium carbonate were reacted with 10 g of HCI
solution, the product was a mixture of 2.5 g of CO2 and 11.5 g of sodium
chloride solution. If the data is in agreement with the law of conservation
of mass, then mass of reactants and mass of products will be​

Answer 1

Answer:

In the given reaction,

(14g)

Sodium carbonate

+

(10g)

Ethanoic acid

⇒

(16.67)

(Sodiumethanoate+water)

+

(7.33g)

Carbondioxidegas

Total mass of all reactants combined

=14g+10g=24g

Total mass of all the products formed

=16.67g+7.33g=24g.

It is observed that Total mass of all reactants combined =24g= Total mass of all the products formed. Therefore, the given observations are in agreement with the law of conservation of mass.

Answer 2

Answer:

The reaction is:

 sodium chloride + hydrochloric acid → sodium chloride + carbon dioxide

          4 g                         10 g                          11.5 g                       2.5 g

 

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

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