Waht is the mass of $56 c m^{3}$ fo carbon monoxide at STP?
\([C = 12; O = 16]|)

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Solution

22400 $c m^{3}$ has a mass of 28 g at STP (1 mole of $C O$ = 28 g\)
56 $c m^{3}$ has a mass of $\frac{28}{22400} \times 56$ = 0.07 g

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What is the mass of $56 c m^{3}$ of carbon monoxide at STP?
$[C = 12; O = 16] |$

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Waht is the mass of 56cm3 fo carbon monoxide at STP? \([C = 12; O = 16]|)

22400 cm3 has a mass of 28 g at STP (1 mole of CO = 28 g\) 56 cm3 has a mass of 2822400×56 = 0.07 g

Waht is the mass of $56 c m^{3}$ fo carbon monoxide at STP?
\([C = 12; O = 16]|)

22400 $c m^{3}$ has a mass of 28 g at STP (1 mole of $C O$ = 28 g\)
56 $c m^{3}$ has a mass of $\frac{28}{22400} \times 56$ = 0.07 g