Calculate the Molarity of 89.94 g NaCl is dissolved in 1249 mL of solution.

e

Molarity = 1.23 M

Explanation:

Given dа ta:

Molarity of NaCl = ?

Mass of NaCl = 89.94 g

Volume of solution = 1249 mL (1249/1000 = 1.249 L)

Solution:

First of all we will calculate the number of moles of NaCl.

Number of moles = mass/molar mass

Number of moles = 89.84 g / 58.5 g/mol

Number of moles = 1.54 mol

Molarity:

Molarity = Number of moles of solute / volume of solution in L

Molarity = 1.54 mol / 1.249 L

Molarity = 1.23 M