Question

given that 1mol of carbon weighs 12.0g how many atoms are there in 24.0g of magnesium

Answer 1

given that 1mol of carbon weighs 12.0g how many atoms are there in 24.0g of magnesium

$$\begin{array}{l} \nu(Mg) = \frac{m(Mg)}{M(Mg)} \\ \nu(Mg) = \frac{24}{24} = 1mol \end{array}$$

If 1 mol of Carbon contains 6.02*10²³ atoms, then 24 g of Magnesium (1 mol) contains 6.02*10²³ atoms

24 g of Magnesium = 6.02*10²³ atoms