Calculate the mass of sodium oxide Na2O (two small), which can be obtained with sodium weighing 9.2 g and oxygen weighing 3.2 g.

univerkov | December 3, 2020 | education

4Na + O2 = 2Na2O
n (Na) = m \ M = 9.2 \ 23 = 0.4 mol
n (O2) = m \ M = 3.2 \ 32 = 0.1 mol
for ur-th p-and n (Na2O) = 0.2 mol
m (Na2O) = nM = 0.2 * 62 = 12.4 g
Answer: 12.4 g

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