If 3.6 g of chlorine combines with sodium to make 6.0 g of sodium chloride, what mass of sodium is required?
A) 3.6 g
B) 2.4 g
C) 6.0 g
D) 9.6 g
E) 1.2 g

Question

Quizplus · Accepted Answer

The total mass of sodium chloride produced is the sum of the masses of sodium and chlorine that reacted. We are given that the mass of chlorine that reacted is 3.6 g and the total mass of sodium chloride produced is 6.0 g. Therefore, the mass of sodium that reacted can be calculated as:

mass of sodium = total mass of sodium chloride produced - mass of chlorine
mass of sodium = 6.0 g - 3.6 g
mass of sodium = 2.4 g

Therefore, the best choice is B, with an explanation as provided above.

If 36 G of Chlorine Combines with Sodium to Make 6