Calculate the concentration (M) of sodium ions in a solution made by diluting 60.0 mL of a 0.374 M solution of sodium sulfide (Na2S) to a total volume of 350 mL.

A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make 65.0 mL of a final solution. What is the concentration of the final solution in mol/L?

A student prepared a stock solution by dissolving 20.0 g of KOH in enough water to make 150.0 mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make a final solution of 65.0 mL. What is the concentration of the final solution in mol/L?

Calculate the concentration (M) of sodium ions in a solution made by diluting 25.0 mL of a 0.765 M solution of sodium sulfide (Na2S) to a total volume of 225 mL.

Calculate the concentration (M) of sodium ions in a solution made by diluting 40.0 mL of a 0.474 M solution of sodium sulfide (Na2S) to a total volume of 300 mL.

Calculate the concentration (M) of sodium ions in a solution made by diluting 80.0 mL of a 0.174 M solution of sodium sulfide (Na2S) to a total volume of 125 mL.

Calculate the concentration (M) of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M solution of Na₂S to a total volume of 250.0 mL.

To 225 mL of a 0.80 M solution of KI, a student adds enough water to make 1.0 L of a more dilute KI solution. What is the molarity of the new solution?

To what volume should you dilute 50.0 mL of a 12 M stock HNO₃ solution to obtain a 0.100 M HNO₃ solution?