# One gram of gold costs $75. How much would one atom of gold be worth?

##### 1 Answer

Jan 1, 2016

One atom of gold is worth $0.000 000 000 000 000 000 025.

#### Explanation:

Let's do the calculation in three steps.

**1.** Convert the mass of gold to moles of gold.

**2.** Convert moles of gold to atoms of gold.

**3.** Now, find the price of 1 atom of gold.