Question

What is the mass of 6.02 x 1023 molecules of CO2?

Answer 1

Step-by-step explanation

Given that

The number o molecules is 6.02 x 10^23 molecules

Firstly, find the number of moles using the below formula

`\text{ mole = }\frac{\text{ number of molecules}}{\text{ Avogadro's number}}`

Recall, that the Avogadro's number is 6.02 x 10^23

`\begin{gathered} \text{ mole = }\frac{6.02\text{ }*\text{ 10}^(22)}{6.02\text{ }*\text{ 10}^(23)} \\ \text{ mole = 1} \end{gathered}`

Secondly, find the mass of CO2 using the formula below

`\text{ mole = }\frac{mass}{\text{ molar mass}}`

Recall, that the molar mass of CO2 is given as 44.01 g/mol

`\begin{gathered} \text{ mole = }\frac{\text{ mass}}{\text{ molar mass}} \\ \text{ mass = mole }*\text{ molar mass} \\ \text{ mass = 1 }*\text{ 44.01} \\ \text{ mass = 44.01 grams} \end{gathered}`

Therefore, the mass of CO2 is 44 grams