Solution-A sample of kclo3 was heated and 350 ml of o2 was

A sample of KClO3 was heated and 350. mL of O2 was collected over water. What mass of O2 was collected? Room T = 23°C, P =675. mmHg.

2 KClO3(s) ? 2 KCl(s) + 3 O2(g)

a. 0.012 g
b. 0.40 g
c. 0.25 g
d. 1.2 g

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