Answer to Question #258105 in Inorganic Chemistry for shamsa

Question

3. Calculate which of the following contains more grams of calcium: 4.6 X 1020 atoms of Calcium or 0.050 mol calcium.

Answer 1

Molar mass of calcium = 40.078

= 0.05×40.078= 2.0039g

4.6×10²⁰/6.023×10²³=0.000764mol

0.000764×40.078=0.03116g

Hence, 0.050mol has more grams