What is the mass of .50 moles of chromium(II) oxide?

1 Answer
Mar 13, 2017

Answer:

The mass of 0.50 mol of chromium(II) oxide is 34 g.

Explanation:

The formula of chromium(II) oxide is #"CrO"#.

Thus, the mass of one mole of #"CrO"# is #"(52.00 + 16.00) g" = "68.00 g"#

∴ The mass of 0.50 mol of #"CrO"# is

#0.50 color(red)(cancel(color(black)("mol CrO"))) × "68.00 g"/(1 color(red)(cancel(color(black)("mol CrO")))) = "34 g"#