16
A) If 19.2 grams of an aqueous solution of sodium bromide, NaBr , contains 1.41 grams of sodium bromide, what is the weight/weight percent of sodium bromide in the solution?
Weight/weight percent = ________%NaBr
B) An aqueous solution of aluminum iodide, AlI3, contains 10.4 grams of aluminum iodide and 17.6 grams of water. What is the weight/weight percent of aluminum iodide in the solution?
Weight/weight percent =_____ %
C) How many mL of methyl alcohol are required to make a 9.75% (v/v) aqueous solution in a 300. mL volumetric flask?
_______mL
D) How many mL of acetone are required to make a 4.94% (v/v) aqueous solution in a 500. mL volumetric flask?
______ mL
E) How many grams of aluminum iodide, AlI3, are required to make a 6.11 %(w/v) aqueous solution in a 300. mL volumetric flask?
__________g
F) If an aqueous solution is 7.66% (w/v) in iron(II) sulfate, FeSO4, how many grams of iron(II) sulfate are there in a liter of solution?
_______g
16 A) If 19.2 grams of an aqueous solution of sodium bromide, NaBr , contains 1.41...
1. You need to make an aqueous solution of 0.138 M magnesium bromide for an experiment in lab, using a 125 mL volumetric flask. How much solid magnesium bromide should you add? 2. How many milliliters of an aqueous solution of 0.163 M aluminum nitrate is needed to obtain 13.4 grams of the salt? 3. n the laboratory you dissolve 19.8 g of calcium chloride in a volumetric flask and add water to a total volume of 250 . mL....
How many milliliters of an aqueous solution of 0.149 M sodium sulfate is needed to obtain 6.41 grams of the salt? In the laboratory you dissolve 17.4 g of copper(II) bromide in a volumetric flask and add water to a total volume of 500 . mL. What is the molarity of the solution?
a) You need to make an aqueous solution of 0.194 M sodium phosphate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium phosphate should you add? b)How many milliliters of an aqueous solution of 0.229 M ammonium iodide is needed to obtain 6.59 grams of the salt?
PART A: I) How many grams of CoI2 are there in 225 grams of an aqueous solution that is 21.0 % by weight CoI2. II) An aqueous solution of iron(III) sulfate, Fe2(SO4)3, contains 9.24 grams of iron(III) sulfate and 17.6 grams of water. The percentage by mass of iron(III) sulfate in the solution is %. Part B: I) A solution was made by dissolving 2.39 g sodium chloride () in 27.9 g water (h20). What is the mole fraction of...
1. An aqueous solution is made by dissolving 18.0 grams of aluminum iodide in 389 grams of water. The molality of aluminum iodide in the solution is 2. In the laboratory you are asked to make a 0.406 m barium hydroxide solution using 425 grams of water. How many grams of barium hydroxide should you add? 3. An aqueous solution is 5.50% by mass ammonia, NH3, and has a density of 0.975 g/mL. The molality of ammonia in the solution...
1. You need to make an aqueous solution of 0.137 M chromium(II) iodide for an experiment in lab, using a 125 mL volumetric flask. How much solid chromium(II) iodide should you add? ________grams 2. How many milliliters of an aqueous solution of 0.172 M iron(II) acetate is needed to obtain 18.6 grams of the salt? ______mL
1A)The compound magnesium bromide is a strong electrolyte. Write the reaction when solid magnesium bromide is put into water: 1B)The compound zinc sulfate is a strong electrolyte. Write the reaction when solid zinc sulfate is put into water 1C)The compound cobalt(II) chloride is a strong electrolyte. Write the reaction when solid cobalt(II) chlorideis put into water: 1D)You need to make an aqueous solution of 0.171 M potassium iodide for an experiment in lab, using a 300 mL volumetric flask. How...
You need to make an aqueous solution of 0.181 M magnesium bromide for an experiment in lab, using a 300 mL volumetric flask. How much solid magnesium bromide should you add?
2.) How many grams of lithium bromide are dissolved in 125.0 grams of solution that is 5.00% sodium iodide by mass? 3.) How many milliliters of a 20.0% antibiotic solution must be administered to a patient who needs 1.75 grams of antibiotics? Assume the density of the solution is 1.18 g/mL.
1) You need to make an aqueous solution of 0.125 M silver nitrate for an experiment in lab, using a 250 mL volumetric flask. How much solid silver nitrate should you add? ____ grams 2)How many milliliters of an aqueous solution of 0.160 M aluminum chloride is needed to obtain 6.50 grams of the salt? __ mL