AP Chemistry Multiple Choice Practice Test

Question 1 of 3

24% Get this Question Right

Water can be decomposed by electrolysis to hydrogen gas and oxygen gas. What mass of water must decompose to yield 24.0 L of oxygen gas at 1.00 atm and 25 degrees Celsius? 2H2O(l) -> 2H2(g) + O2(g)

	35.3 g
	23.6 g
	17.7 g
	70.7 g
	11.1 g