Answer to Question #143746 in General Chemistry for Natasha

Question #143746
The molar mass of carbon dioxide gas is 44.0 g/mol. How many molecules are in 52.0 g of carbon dioxide gas?
1
Expert's answer
2020-11-11T10:35:53-0500

We use Avogadro's number of 6.022×10236.022\times 10^{23} molecules per mole to calculate the number of molecules from the number of moles represented by 52.0g52.0g of carbon dioxide.

The molecular weight of CO2CO_2 =44.0g/mol=44.0g/mol

==52.0g44.0g/mol52.0g\over 44.0g/mol ×\times 6.022×1023molecules1mol6.022\times 10^{23} molecules\over1mol

=7.117×1023moleculesofCO2=7.117\times 10^{23} molecules of CO_2


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