Question

What is the molarity of a Sodium Chloride solution if 86.00g of NaCl was dissolved in enough water to form 1000.mL of solution?

Answer 1

Answer:

1.47 M

Explanation:

First we convert 86.00 g of NaCl into moles of NaCl, using the molar mass of NaCl:

• 86.00 g ÷ 58.44 g/mol = 1.472 mol NaCl

Then we convert 1000 mL into liters:

• 1000 mL / 1000 = 1.0 L

Finally we can calculate the molarity of the solution:

• Molarity = moles / liters

• 1.472 mol / 1.0 L = 1.472 M