What is the mass of 1 molecule of CO?

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$2.325 \times 10^{- 23}$

$4.65 \times 10^{- 23}$

$3.732 \times 10^{- 23}$

$2.895 \times 10^{- 23}$

answer is B.

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Detailed Solution

Gram molecular weight of CO = 12+ 16 = 28 g
6.023 x l0²³ molecules of CO weight 28 g
I molecule of CO weighs = $\frac{28}{6.02 \times 10^{23}}$ = $4.65 \times 10^{- 23} g$

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