Question

The atomic mass of Gold is 197.0 amu. How much does it weigh compared to C-12?
Group of answer choices

16.42 times heavier

16.00 times heavier

16.41 times heavier

16.40 times heavier

Answer 1

Given:

          The atomic mass of Gold is 197.0 amu.

To find :

          How much times Gold is heavier than C-12?

Explanation:

The atomic mass of Gold is 197.0 amu.

The atomic mass of C-12 is 12.011 amu.

So gold is heavier than C-12 by    $\frac{197.0}{12.011}$  times.

i.e.   $\displaystyle \frac{197.0}{12.011}$

 =     16.4016  

≅    16.40

Hense gold is 16.40 times heavier than C-12.