What mass of potassium can be produced by the reaction of 87.50 grams of Na and 87.50 grams of KCl? ?

Question

What mass of potassium can be produced by the reaction of 87.50 grams of Na and 87.50 grams of KCl? ?

Answer 1

1Na (22.99g/mol) & 1KCl (74.551 g/mol)  --> NaCl  & 1K (39.10g/mol)

your limiting reagent is the 87.50 grams of KCl, because the needed more than 3 times as much grams of  KCl as they have grams of Na

using molar masses:

87.50 g KCl @ 39.10 g K / 74.55 g KCl = 45.89 grams of K

your answer is 45.89 g K