The mass of 2.50×10²³ molecules of CaO is 23.26 g
Avogadro's hypothesis
From Avogadro's hypothesis,
6.02×10²³ molecules = 1 mole of CaO
But
1 mole of CaO = 40 + 16 = 56 g
Thus, we can say that:
6.02×10²³ molecules = 56 g of CaO
How to determine the mass of 2.50×10²³ molecules of CaO
From Avogadro's hypothesis,
6.02×10²³ molecules = 56 g of CaO
Therefore,
2.50×10²³ molecules = (2.50×10²³ × 56) / 6.02×10²³
2.50×10²³ molecules = 23.26 g of CaO
Thus, the mass of 2.50×10²³ molecules of CaO is 23.26 g
Learn more about Avogadro's number:
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