Question

The question that I. Need help with us in the ohoto

Answer 1

Answer: 13.175

Step-by-step explanation:

`\text{Molarity}=\frac{\text{moles of solute}}{\text{liters of solution}}`

To find the moles of solute, we begin by finding the formula mass of NaOH.

• The atomic mass of Na is 23 g/mol.
• The atomic mass of O is 16 g/mol.
• The atomic mass of H is 1 g/mol.
• So, the atomic mass of NaOH is 40 g/mol.

This means 527 grams of NaOH is equal to
`(527)/(40)=13.175` moles.

So, the molarity is
`(13.175)/(1)=13.175 \text{ M}`