Question

Determine the molarity of the following solution made up of 25.0 g of NaCl in 250.0 mL of solution?

Answer 1

Answer:

Molarity = 1.68 M

Explanation:

Molarity = No: of moles of solute / Total volume in litres

No: of moles of solute = Given mass / molar mass

n = 25/59.5 = 0.42 moles

Volume of solution = 250 mL = 1/4 L = 0.25L

•°• Molarity = 0.42/0.25 = 42/25 = 1.68 M