Calculate the volume of oxygen weighing 6.8 grams

univerkov | July 24, 2021 | education

Given:
m (O2) = 6.8 g

To find:
V (O2) -?

Solution:
1) M (O2) = Mr (O2) = Ar (O) * 2 = 16 * 2 = 32 g / mol;
2) n (O2) = m (O2) / M (O2) = 6.8 / 32 = 0.21 mol;
3) V (O2) = n (O2) * Vm = 0.21 * 22.4 = 4.7 liters.

Answer: The O2 volume is 4.7 liters.

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