Question

The average mass of one gold atom in a sample of naturally occurring gold is $3.257\times {10}^{-22}g$. Using this, the molar mass of gold calculated is :

• A. 196.136 g
• B. 193.124 g
• C. 197.169 g
• D. 198.269 g

Answer 1

The correct option is A 196.136 g

The average mass of one gold atom in a sample of naturally occurring gold $=$ $3.257\times {10}^{-22}g$.

The molar mass of gold $=$ $3.257\times {10}^{-22}\times 6.022\times {10}^{23}=196.136g$.