Posted by CC on Wednesday, February 10, 2010 at 12:14am.
200. g of a solvent is available, how many grams of a solute should be weighed out to make a 15.0% solution by mass?
Chemistry - DrBob222, Wednesday, February 10, 2010 at 12:27am
What's the definition of mass percent?
% = (mass solute/100 g solution)*100.
mass solute = x
mass solution = 200 g solvent + x g solute = 200+x
Substitute and solve for x.
(x/x+200)*100 = 15
Chemistry - CC, Wednesday, February 10, 2010 at 1:01am
still not making sense because answers are
Chemistry - DrBob222, Wednesday, February 10, 2010 at 12:32pm
Then you made a math error because the correct answer is listed.
Answer This Question
More Related Questions
- chemistry - Which of the following can be determined if the boiling-point ...
- Chemistry - 1) The molecular mass of a substance was determined by the freezing ...
- chemistry - Which of the following is NOT true for solutes and solvents? A. At ...
- chemistry - The following errors occurred when the experiment was carried out. ...
- AP Chemistry - The question asked... Calculate the solubility of calcium sulfate...
- chemistry - The molecular mass of a substance was determined by the freezing ...
- chemistry - A solution was made by dissolving 62.07 grams of a compound in 500.0...
- Chemistry - 1. What is the percent by mass of a solution that contains 50 grams ...
- chemistry - In 24 g of a 7.8% by mass solution of CaSO4? How many grams of ...
- Chemistry - What does it mean to say that a solution is saturated with a solute...