Question

What is the molarity for 23.4 g of sodium hydroxide in 250.0 mL?

Answer 1

Answer:

2.34 M

Explanation:

The molecular weight of sodium hydroxide is 39.997 g/mol. That is, 1 mole weights 39.997 g.

You have 23.4 g, so you have

23.4g39.997gmol=0.585 moles.

These 0.585 moles are present in 250 ml, and 250 ml is equivalent to 0.25 liters.

Molarity is moles per liter.

molarity=moleslitre

molarity=0.585 moles0.25 L

molarity = 2.34 M

I hope I help you

please don't forget to follow me