Question

Calculate the number of moles present in 220 g carbon dioxide

Answer 1

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220 mg = 0.22 g. molar mass CO2 =
44.0 g/mol.
mol = mass / molar mass
0.22 g / 44.0 g/mol = 0.005 mol.

Answer 2

Hey!

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Mass of CO2 = 220 g
Molecular mass of CO2 = 44 g

Number of moles = Mass of CO2/Molecular mass of CO2

= 220/44
= 5

Number of moles present in 220 g of CO2 is 5.

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