Question

How many molecules of CO2 areequivalent to 112 g CO2?

Answer 1

`molecules\text{ of CO}_2=1.53*10^(24)molecules`

Explanations:

Given the following parameters

Mass of CO2 = 112 grams

Determine the moles of CO2

`\begin{gathered} moles\text{ of CO}_2=\frac{mass}{molar\text{ mass}} \\ moles\text{ of CO}_2=(112)/(44.01) \\ moles\text{ of CO}_2=2.545moles \end{gathered}`

According to the Avogadro's constant

`1mole\text{ of a substance}=6.02*10^(23)molecules`

Determine the molecules of CO2

`\begin{gathered} molecules\text{ of CO}_2=2.545*6.02*10^(23) \\ molecules\text{ of CO}_2=15.32*10^(23) \\ molecules\text{ of CO}_2=1.53*10^(24)molecules \end{gathered}`

Prefix (green )= 1.53

Exponent (yellow) = 24