Multiple Choice
If 880 mL of water is added to 125.0 mL of a 0.770 M HBrO4 solution what is the resulting molarity?
6. Chemical Quantities & Aqueous Reactions
Dilutions
Back6. Chemical Quantities & Aqueous Reactions
Dilutions
- Multiple Choice
A student prepared a stock solution by dissolving 25.00 g of NaOH in enough water to make 150.0 mL solution. The student took 20.0 mL of the stock solution and diluted it with enough water to make 250.0 mL solution. Finally taking 75.0 mL of that solution and dissolving it in water to make 500 mL solution. What is the concentration of NaOH for this final solution? (MW of NaOH:40.00 g/mol).
- Open Question
What is the concentration of a solution made by diluting 35 mL of 6.0 m HCl to a final volume of 750 mL?
- Open Question
What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl?
- Open QuestionA standard solution is prepared for the analysis of fluoxymesterone
- Open Question
How much of a 0.250 M sucrose solution must be used to prepare 400.0 mL of a 0.0310 M solution? mL
- Open Question
How many ml of a 3 mol/L NaOH solution are required to make 100 ml of a 0.2 mol/L NaOH solution?
- Open Question
Calculate the molarity of a solution of FD&C blue dye no. 1
- 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.