It is desired to prepare 0.500 L of a 0.125 M solution of NaCI from a 1.00 M stock solution. How many mL of the stock solution must be taken for the dilution? Enter your answer in the provided box. mL

What volume  (in mL) of 2.85 M potassium sulfate solution would contain 30.8 g of solute? Enter only the numerical answer in the box. Give 3 sig figs in your answer.

Suppose that 2.89 L of 6.75 M potassium carbonate is added to 1.38 L of 1.57 M magnesium nitrate.  What is the total concentration of ions in solution after the reaction goes to completion? (Do not include units in your answer. If you round during your calculation make sure to keep at least 3 decimal places. Report your answer to 1 decimal place.)

A student determines the calcium content of a solution by first precipitating it as calcium hydroxide, and then decomposing the hydroxide to calcium oxide by heating. How many grams of calcium oxide should the student obtain if his solution contains 48.0 mL of 0.479 M calcium nitrate? g

A chemistry student needs 10.0 ml of 0.350M NaOH. The only NaOH solution in the lab has a concentration of 5.00M. What volume of 5.0M solution must be used to prepare the needed solution?     1.43 mL     0.700 mL     0.175 mL     143 mL

A student weighs out a 2.76 g sample of NaOH , transfers it to a 500. mL volumetric flask, adds enough water to dissolve it and then adds water to the 500. mL tick mark. What is the molarity of sodium hydroxide in the resulting solution? Molarity =  _____M

You wish to make a 0.421 M hydroiodic acid solution from a stock solution of 3.00 M hydroiodic acid. How much concentrated acid must you add to obtain a total volume of 150 mL of the dilute solution?

You wish to make a 0.184 M hydroiodic acid solution from a stock solution of 3.00 M hydroiodic acid. How much concentrated acid must you add to obtain a total volume of 150 mL of the dilute solution?

you have 200.0 mL of a 0.455 M solution of sucrose. what mass of sucrose do you have

Use the References to access important values if needed for this question. An aqueous solution of acetone is made by transfering 24.5 mL of liquid acetone to a 300. mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of acetone in the solution? Volume/volume percentage = %