To determine the number of moles of water in a sample, you can use the formula:
[tex]\[
\text{moles} = \frac{\text{mass of the sample}}{\text{molar mass}}
\][/tex]
Given:
- The mass of the water sample is [tex]\(18.0 \text{ g}\)[/tex].
- The molar mass of water ([tex]\(H_2O\)[/tex]) is [tex]\(18.0 \text{ g/mol}\)[/tex].
Next, plug the given values into the formula:
[tex]\[
\text{moles of water} = \frac{18.0 \text{ g}}{18.0 \text{ g/mol}}
\][/tex]
Performing the division:
[tex]\[
\text{moles of water} = 1.0 \text{ mole}
\][/tex]
Hence, there are [tex]\(1.0\)[/tex] mole of water in the [tex]\(18.0 \text{ g}\)[/tex] sample.
The correct answer is:
[tex]\[
1.00 \text{ mole}
\][/tex]
