When you need to produce a variety of diluted solutions of a solute, you can dilute a series of stock solutions. A stock solution has a significantly higher concentration of the given solute (typically 101 to 104 times higher than those of the diluted solution). The high concentration allows many diluted solutions to be prepared using minimal amounts of the stock solution. What volume of a 6.75 M stock solution do you need to prepare 500. mL of a 0.0888 M solution of KCI? Express the volume to three significant figures with the appropriate units.

Chemistry A student weighs out a 9.08 g sample of ZnSO4, transfers it to a 250. mL volumetric flask, adds enough water to dissolve it and then adds water to the 250. mL tick mark. What is the molarity of zinc sulfate in the resulting solution? Molarity = M

1000 3. A salt solution is to be added to a marine aquarium, Calculate the molarity of a salt solution that is prepared by adding water to 18.65 g of NaCl to give a final volume of 250.0 mL.

In the laboratory, a student dilutes 23.8 mL of a 8.98 M hydrochloric acid solution to a total volume of 100.0 mL. What is the concentration of the diluted solution? Concentration M

A stock solution of KNO2 is available to prepare solutions that are more dilute. Calculate the volume, in mL, of a 2.0-M solution of KNO2 required to prepare exactly 100 mL of a 0.790-M solution of KNO2. mL

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You work as an intern at a drug testing facility. The head scientist asks you to prepare 50.0 milliliters (ml) of a 0.625 M (molar) solution of FeCl3 he needs for a Trinder spot test, used to detect salicylates. How many grams of solid FeCl3 will you need to make the solution?

Preparing a given volume of a solution that has a specific molarity is a very important skill for a chemist. One step in that process is calculating the mass of solute required. What mass of solute is required to produce 404.3 mL of a 0.347 M solution of KBr? What mass of NaNO3 is required to prepare 20.1 mL of solution of NaNO3 with a molarity of 0.222 M What mass of CH3OH is required to prepare 108.8 mL of solution with a CH3OH concentration of 0.342 M?

A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 97.1 mg of FeBr, into a 100. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to 3 significant digits. olo mol x10 Ar

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