Question

1. the mass of one gold atom is approximately 3.27 x 10^(-11) ng. how many grams is this?

Explanation:

Step1: Recall the conversion factor

1 ng = 10⁻⁹ g

Step2: Convert the mass of gold atom

We have a mass of 3.27×10⁻¹¹ ng. Multiply by the conversion - factor:
\[m=(3.27\times 10^{-11}\text{ ng})\times(10^{-9}\text{ g/ng})\]
\[m = 3.27\times10^{-20}\text{ g}\]

Answer:

3.27×10⁻²⁰ g