M Na2O=2*23 g/mol+16 g/mol=62 g/mol
46 g/mol---x%
62 g/mol---100%
x=74,19%Na
100%-74,19%=25,81%O
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M Na2O=2*23 g/mol+16 g/mol=62 g/mol
46 g/mol---x%
62 g/mol---100%
x=74,19%Na
100%-74,19%=25,81%O