How many moles of CO2 are present in 220 mg ? - IQ786

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How many moles of CO2 are present in 220 mg ?

How many moles of CO2 are present in 220 mg ?

0.005 mole

500 mole

700 mole

None

Explanation

Weight of given sample of $C O_{2} = 220 m g = 220 \times 1 0^{- 3} g$

$no. of moles (n) = \frac{Weight of given sample}{molecular weight}$

$= \frac{2 2 0 \times 1 0 ^{- 3}}{4 4}$

$= 5 \times 1 0^{- 3} = 0.005 m o l e$