How many molecules of carbon dioxide are formed when 0.6 g carbon is burnt in air?

Question

TestHub · Accepted Answer

The balanced chemical equation for the combustion of carbon is:

$C + O_{2} \to C O_{2}$

Number of moles of carbon is given by:

$n = \frac{Mass}{Molar mass} = \frac{0.6}{12} = 0.05 mol$

From the stoichiometry of the reaction, $1 mol$ of carbon produces $1 mol$ of carbon dioxide. Therefore, the number of moles of $C O_{2}$ formed is $0.05 mol$ .

The number of molecules of $C O_{2}$ is:

$N = n \times N_{A}$

$N = 0.05 \times 6.022 \times 1 0^{23}$

$N = 3.011 \times 1 0^{22}$

Answer: $3.01 \times 1 0^{22}$

Chemistry - Mole Concept Question with Solution | TestHub

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