Question

Given that the molar mass of NaCl is 58.44 g/mol, what is the molarity of a solution that contains 87.75 g of NaCl in 500. mL of

solution?
moles of solute
Use molarity - liters of solution

Answer 1

3M

Step-by-step explanation:

Answer 2

Molarity = 3 M

Step-by-step explanation:

Given data:

Molarity of solution = ?

Mass of sodium chloride = 87.75 g

Volume of solution = 500 mL (0.5 L)

Solution:

Number of moles = mass/ molar mass

Number of moles = 87.75 g/ 58.44 g/mol

Number of moles = 1.5 mol

Molarity:

Molarity = number of moles / volume in litter

Molarity = 1.5 mol / 0.5 L

Molarity = 3 M