Question

In the reaction between copper sulphate solution and sodium sulphide solution, 15.9 g copper sulphate completely reacts with 7.8 g of sodium sulphide. It is observed that 9.5 g of copper sulphide is formed. What is the mass of sodium sulphate solution formed?

Answer 1

The mass of formed sodium sulphate solution is 14.2 g.

Step-by-step explanation:

From the given,

Mass of copper sulphate = 15.9 g

Mass of sodium sulphide = 7.8 g

Total mass of reactant = Mass of copper sulphate + Mass of sodium sulphide

= 15.9 + 7.8g = 23.7g

Mass of copper sulphide formed = 9.5 g

Mass of sodium sulphate = Total mass - Mass of copper sulphide

= 23.7 g - 9.5 g = 14.2 g

Therefore, The mass of formed sodium sulphate solution is 14.2 g.