What is the molarity of an NaI solution that contains 7.0 g of NaI in 21.0 mL of solution?

Question

Quizplus · Accepted Answer

The molarity (M) is calculated using the formula M = moles of solute / liters of solution. First, calculate the moles of NaI: the molar mass of NaI (sodium iodide) is approximately 149.89 g/mol. So, 7.0 g of NaI is 7.0 g / 149.89 g/mol = 0.0467 moles. Then, convert the volume of the solution from mL to L: 21.0 mL = 0.021 L. Finally, calculate the molarity: M = 0.0467 moles / 0.021 L = 2.223 M, which rounds to 2.2 M.

What Is the Molarity of an NaI Solution That Contains