Question

Avogadro's number is 6.022 x 1023
atoms or particles of any substance. If you are told you have 8.324 x 1023
atoms of zinc, how many moles of zinc do you have? Please report your answer to the nearest tenth place, or one decimal. The units of mol are provided for you. (1 point)
___mol of Zn

Answer 1

To calculate the number of moles of zinc you have, you can use the formula:

\[
\text{Number of moles} = \frac{\text{Number of atoms}}{\text{Avogadro's number}}
\]

Given:
- Number of atoms of zinc = \( 8.324 \times 10^{23} \)
- Avogadro's number = \( 6.022 \times 10^{23} \)

Now plug in the values:

\[
\text{Number of moles} = \frac{8.324 \times 10^{23}}{6.022 \times 10^{23}}
\]

Calculating this gives:

\[
\text{Number of moles} = \frac{8.324}{6.022} \approx 1.38
\]

Therefore, rounding to the nearest tenth, you have:

\[
\approx 1.4 \text{ mol of Zn}
\]

So the answer is:

**1.4 mol of Zn**