How much sodium chloride will be produced?

Question

If 11.54 grams of pure sodium is reacted in the presence of 21.4grams of chlorine gas, how much sodium chloride will be produced?

 

1. a. 32.9grams
2. b. 35.3grams
3. c. 29.4grams
4. d. 9.51grams

Answer 1

Dimensional analysis from balanced reaction 2 Na + Cl₂ --> 2 NaCl:

(11.54g Na) * (1 mol Na / 22.99g Na) * (2 mol NaCl / 2 mol Na) * (58.44g NaCl / 1 mol NaCl) = 29.33g NaCl, very close to one of the answers.