J.R. S. answered 03/31/20
Ph.D. University Professor with 10+ years Tutoring Experience
2KMnO4 + 16HCl ==> 2MnCl2 + 2KCl + 5Cl2 + 8H2O ... balanced equation
25 g KMnO4 x 1 mol/158 g x 2 mol MnCl2/2 mol KMnO4 x 126 g/mol MnCl2 = 19.9 g MnCl2
85 g HCl x 1 mol/36.5 g x 2 mol MnCl2/16 mol HCl x 126 g/mol MnCl2 = 36.7 g MnCl2
Since KMnO4 is limiting, 19.9 g MnCl2 would be produced, theoretically.