![]() ![]() Calculate the percentage by mass of urea in the solution. Jan 2008 - 38 What is the concentration of O 2(g), in parts per million, in a solution that contains 0.008 gram of O 2(g) dissolved in 1000.6 g of urea was dissolved in 500 g of water. grams of a solution having a concentration of 5 parts per million? June 2009- 36 What is the total mass of solute in 1000. June 2008- 38 What is the concentration of O 2(g), in parts per million, in a solution that contains 0.008 gram of O 2(g) dissolved in 1000. June 2005 -42 What is the concentration of a solution, in parts per million, if 0.02 gram of Na 3PO 4 is dissolved in 1000 grams of water? grams of H 2O, what is the concentration of the resulting solution, in parts per million? If 0.025 gram of Pb(NO 3) 2 is dissolved in 100. Here was another one, but it was a multiple choice. It is technically wrong not to add the solute and solvents together to determine the mass of solution. Even though mathematically it didn't change a thing. Īnswer-The equation above reads "grams of solution", you had to add the solute to the solvent in the denominator. Your response must include both a correct numerical setup and the calculated result. In the space in your answer booklet, calculate the dissolved oxygen concentration of this solution in parts per million. ![]() An aqueous solution has 0.0070 gram of oxygen dissolved in 1000. Most students lost 1 of the 2 points on this one.Ħ6. Then June 2007, New York State threw this curveball. What is the concentration of a solution, in parts per million, if 0.02 gram of NaCl is dissolved in 1000. This is really just a plug and chug problem. Think about this 1ppm = 1 inch in 16 miles ![]() ![]() This is used for very small concentrations of particles in solutions. This is another way of determining concentration. ![]()
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