Open Question
Calculate the molarity of a solution of FD&C blue dye no. 1
6. Chemical Quantities & Aqueous Reactions
Dilutions
Back6. Chemical Quantities & Aqueous Reactions
Dilutions
- Open Question
What is the value of x, the concentration of the unknown ethanol solution? 0.02 0.04 0.05 0.08
- Multiple ChoiceA 100.0 mL sample is prepared from a 250.0 mL stock solution by pipetting 5.00 mL of the stock solution and diluting it until it had a molarity of 2.5 * 10^-4 M. What is the molarity of the original stock solution?
- Multiple ChoiceA flask contains 50.0 mL of 1.00 M sodium hydroxide. Its contents are fully transferred to a larger flask, and enough water is added to prepare 1.00 L of solution. What is the concentration of sodium hydroxide in the diluted solution?
- Multiple ChoiceA 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?
- Multiple ChoiceA 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?
- Multiple ChoiceCalculate 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.
- Multiple ChoiceCalculate 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.
- Multiple ChoiceCalculate 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.
- Multiple ChoiceCalculate 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.
- Multiple ChoiceCalculate 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.
- Multiple ChoiceTo 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?
- Multiple ChoiceTo what volume should you dilute 50.0 mL of a 12 M stock HNO₃ solution to obtain a 0.100 M HNO₃ solution?
- Multiple ChoiceWhat 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?
- Multiple ChoiceWhat 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?