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

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.

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?

What is the final concentration of a solution prepared by diluting 35.0 mL of 12.0 M HCl to a final volume of 1.20 L?

What is the final volume when 15.00 mL of a 4.50 M HCl solution is diluted to a final concentration of 0.750 M?

What is the final volume when 20.00 mL of 3.00 M NaCl solution is diluted to a final concentration of 0.100 M?

What is the molar concentration of the chloride ion (Cl⁻) in a solution prepared by diluting 25.0 mL of a 0.100 M CaCl₂ solution to a final volume of 250 mL?