a) Given the following parameter from the question
Mole of carbon-12 = 7.13 moles
Using the conversion rate
1 mole = 6.02 * 10²³ atoms
Determine the atoms of carbon-12:
[tex]\begin{gathered} \text{atoms of }C=7.13\times6.02\times10^{23}\text{ atoms} \\ \text{atoms of }C=42.9226\times10^{23}atoms \\ \text{atoms of }C=4.29\times10^{24}atoms \end{gathered}[/tex]b) In order to determine the grams of carbon-12, the expression below will be used:
[tex]\begin{gathered} \text{Mass}=\text{Mole}\times\text{molar mass} \\ \text{Mass of C=7.13moles}\times\frac{12g}{mol} \\ \text{Mass of C=}85.56grams \end{gathered}[/tex]Hence the number of grams the carbon-12 weigh is 85.56 grams
