How many moles are there in 78.3g of CO2?

Question

Barbie

Chemistry

4 January, 00:38

How many moles are there in 78.3g of CO2?

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Answers (1)

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Jadyn Spears · Answer 1

The molar mass of CO2 can be calculated as follows;

CO2 - 12 + (16x2) = 12 + 32 = 44 g

Therefore molar mass of CO2 is 44 g/mol

In 44 g of CO2 there’s 1 mol of CO2

Then 1 g of CO2 there’s 1/44 mol of CO2

Therefore in 78.3 g of CO2 there’s - 1/44 x 78.3 = 1.78 mol of CO2