In a chemical reaction,10.g of sodium carbonate reacted with 12 g of ethanoic acid.the poducts were 4.4g carbon dioxide,1.8g of water and 16.4g of sodium ethanoate.
(a) write a word equation ,clearly showing the reactants and products as given above.
(b) also show that this data is in agreement with the law of conservation of mass.
(a) The word equation for the given chemical reaction is:
Sodium carbonate + Ethanoic acid → Carbon dioxide + Water + Sodium ethanoate
(b) To show that this data is in agreement with the law of conservation of mass, we need to determine the total mass of the reactants and compare it with the total mass of the products.
Mass of reactants:
Sodium carbonate = 10.0 g
Ethanoic acid = 12.0 g
Total mass of reactants = 10.0 g + 12.0 g = 22.0 g
Mass of products:
Carbon dioxide = 4.4 g
Water = 1.8 g
Sodium ethanoate (sodium acetate) = 16.4 g
Total mass of products = 4.4 g + 1.8 g + 16.4 g = 22.6 g
As per the law of conservation of mass, the total mass of the reactants should be equal to the total mass of the products. In this case, the total mass of the reactants (22.0 g) is approximately equal to the total mass of the products (22.6 g), indicating that mass is conserved in the reaction.
(a) The word equation for the given chemical reaction can be written as follows:
Sodium carbonate + Ethanoic acid → Carbon dioxide + Water + Sodium ethanoate
(b) To show that the given data is in agreement with the law of conservation of mass, we need to calculate the total mass of the reactants and compare it with the total mass of the products.
Mass of reactants:
Sodium carbonate = 10.0 g
Ethanoic acid = 12.0 g
Total mass of reactants = 10.0 g + 12.0 g = 22.0 g
Mass of products:
Carbon dioxide = 4.4 g
Water = 1.8 g
Sodium ethanoate = 16.4 g
Total mass of products = 4.4 g + 1.8 g + 16.4 g = 22.6 g
According to the law of conservation of mass, the total mass of the reactants must be equal to the total mass of the products. In this case, the total mass of the reactants (22.0 g) is very close to the total mass of the products (22.6 g), with a slight difference due to experimental errors and uncertainties in measurements.
Therefore, the given data is approximately in agreement with the law of conservation of mass, which states that in a chemical reaction, the mass of the reactants will always be equal to the mass of the products.