Question

Solve the numericals.

Find the molecular mass of the following if H(1), O(16), N(14), C(12), K(39), S(32), Ca (40),

Na(23), CP(35.5),Mg(24), Al(27).



PLZ TELL ME​

Answer 1

Explanation:

Sodium carbonate + Ethanoic acid → Sodium ethanoate + Carbon dioxide + Water

5.3 g + 6 g → 8.2 g + 2.2 g + 0.9 g

LHS RHS

11.3 g = 11.3 g

(Mass of reactant) (Mass of product)

This shows, that during a chemical reaction mass of reactact = mass of product.