Question

c. 0.943 mole h₂o to molecules answer: 5.68 x 10²³ molecules h₂o 0.943 mol h₂o → 6.022 x 10²³ = 0.943 m / 6.022 x 10²

Explanation:

Step1: Recall Avogadro's number

Avogadro's number is \( 6.022 \times 10^{23} \) molecules per mole. To convert moles to molecules, we use the formula: \( \text{Number of molecules} = \text{Moles} \times \text{Avogadro's number} \).

Step2: Substitute the values

Given moles of \( \text{H}_2\text{O} = 0.943 \) mol. So, \( \text{Number of molecules} = 0.943 \, \text{mol} \times 6.022 \times 10^{23} \, \text{molecules/mol} \).

Step3: Calculate the product

\( 0.943 \times 6.022 \times 10^{23} \approx 5.68 \times 10^{23} \) molecules.

Answer:

The number of \( \text{H}_2\text{O} \) molecules is \( \boldsymbol{5.68 \times 10^{23}} \).