Question

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

Answer 1

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