Question
What is the number of atoms in 2.50 mol of Zn?(1 point) Responses
2.50 x 10^23 atoms
6.022 x 10^23 atoms
1.5055 x 10^24 atoms
1.00 x 10^24 atoms
2.50 x 10^23 atoms
6.022 x 10^23 atoms
1.5055 x 10^24 atoms
1.00 x 10^24 atoms
Answers
GPT-4o mini
To find the number of atoms in 2.50 mol of Zn (zinc), you can use Avogadro's number, which is approximately \(6.022 \times 10^{23}\) atoms/mol. The calculation is as follows:
\[
\text{Number of atoms} = \text{number of moles} \times \text{Avogadro's number}
\]
Substituting in the values:
\[
\text{Number of atoms} = 2.50 \, \text{mol} \times 6.022 \times 10^{23} \, \text{atoms/mol}
\]
\[
\text{Number of atoms} \approx 1.5055 \times 10^{24} \, \text{atoms}
\]
So, the correct response is:
**1.5055 x 10^24 atoms**
\[
\text{Number of atoms} = \text{number of moles} \times \text{Avogadro's number}
\]
Substituting in the values:
\[
\text{Number of atoms} = 2.50 \, \text{mol} \times 6.022 \times 10^{23} \, \text{atoms/mol}
\]
\[
\text{Number of atoms} \approx 1.5055 \times 10^{24} \, \text{atoms}
\]
So, the correct response is:
**1.5055 x 10^24 atoms**