Calculate the number of moles of 70.0 g of NaOH. Molar mass of NaOH is 40.0 g/molGroup of answer choices1.75 moles1.50 moles2800 moles0.571 moles

1. Break Down the Problem

To find the number of moles of NaOH, we need to use the formula:

$\text{Number of moles} = \frac{\text{Mass (g)}}{\text{Molar mass (g/mol)}}$

2. Relevant Concepts

• Given:
  • Mass of NaOH = 70.0 g
  • Molar mass of NaOH = 40.0 g/mol

3. Analysis and Detail

Using the formula: $\text{Number of moles} = \frac{70.0 \, \text{g}}{40.0 \, \text{g/mol}}$

Calculating the number of moles: $\text{Number of moles} = \frac{70.0}{40.0} = 1.75 \, \text{moles}$

4. Verify and Summarize

The calculation is verified, and the steps are logical based on the given parameters. The computation confirms the number of moles of NaOH derived from the given mass.

Final Answer

The number of moles of 70.0 g of NaOH is 1.75 moles.