Question

convert into mole :20g of carbon dioxide

Answer 1

$no. \: of \: moles = \frac{given \: mass \: }{molar \: mass} \\ since \: it \: is \: molecule \: and \\ it \: has \: molecular \: mass = 12 + 32 = 44 \\ \\ no. \: of \: moles = \frac{20}{44} = \frac{5}{11}$
$\boxed{\huge{\red no\:of \:moles={\frac{5}{11}}}}$

Answer 2

20 g of carbon dioxide is 0.45 moles

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given Mass}}{\text{Molar Mass}}$

Given mass = 20 g

Molar mass = 44 g/mol

Putting the values we get:

$\text{Number of moles of carbon dioxide}=\frac{20g}{44g/mol}=0.45mol$

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