Question

1. Calculate the mass of potassium chloride produced if 4.00 grams of KClO3 are completely decomposed according to the reaction: 2 KClO3   🡪  2KCl  +  3O2

Answer 1

n_KClO3=n_KCl; ${\frac {m(KClO3)} {M(KClO3)}=\frac {m(KCl)} {M(KCl)}}$ $m(KCl)=\frac {m(KClO3) ∗ M(KCl)} {M(KClO3)}$ ; m(KCl) = 2.433 (grams).

SOLUTION: 2.433 grams