Stoichiometry

Mrs. Russotto

Working a Stoichiometry Working a Stoichiometry ProblemProblem

4 K4 K + + 11 OO22 2 K2 K22OO

0.60 g 0.60 g KK22OO

E) How many grams of K2O will be produced from 0.50 g of K?

==0.50 g K0.50 g K

?? g Kg K22OO1 mol K1 mol K

39.10 g K39.10 g K 4 mol K4 mol K

2 mol K2 mol K22OO

1 mol K1 mol K22OO

94.20 g K94.20 g K22OO

Try this with your partner…Try this with your partner…

4 K4 K + + 11 OO22 2 K2 K22OO

0.49 g O0.49 g O22

F) How many grams of O2 are needed to react with 2.4 grams of K?

==2.4 g K2.4 g K

?? g Og O22

1 mol K1 mol K

39.10 g K39.10 g K 4 mol K4 mol K

1 mol O1 mol O22

1 mol O1 mol O22

32.0 g O32.0 g O22