Question 3 (4 points) (05.04 MC)
In an experiment, zinc chlorate decomposed according to the following chemical equation.
Zn(ClO3)2 - ZnCl2 + O2
(Molar mass of Zn(ClO3)2 = 232.29 g/mol; ZnCl2 = 136.286 g/mol; O2 = 31.998 g/mol)
If the mass of zinc chlorate was 150 grams, which of the following calculations can be used to determine the mass of oxygen gas formed? (4
points)
Оа
(150 x 1 x 232.29) + (31.998 x 3) grams
Ob
(150 x 3 x 232.29) + (31.998 x 1) grams
Ос
(150 x 1 x 31.998) + (232.29 x 3) grams
Od
(150 x 3 x 31.998) + (232.29 x 1) grams