Answer to Question #242684 in General Chemistry for Harryk

General Chemistry

Question #242684

What mass of sodium oxide,Na2O will be obtain by burning 11.5g of sodium in air

Expert's answer

4Na+O2=2Na2O

v(Na)=11.5g/23g/mol=0.5mol

v(Na2O)=v/2(Na)=0.25mol

m(Na2O)=0.25mol*62g/mol=15.5g

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