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प्रश्न
Calculate the formula masses of the following compounds :
Sodium oxide, Na2O
उत्तर
Formula mass of Na2O:
Formula mass of Na2O = Mass of two Na atoms + Mass of one O atom
= 2 × 23 + 1 × 16
= 46 + 16
= 62
Therefore, the formula mass of Na2O is 62 u.
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