Question #0dcf7 Chemistry Solutions Percent Concentration 1 Answer nithin s. · Stefan V. Mar 23, 2017 #8# grams. Explanation: A #2.0% "m/v"# (mass/volume) solution is #2# grams of solute in #"100 mL"# of final solution. So for #"400 mL"# of solution, you require #400 cancel("mL") * "2 g"/(100cancel("mL")) = "8 g"# Answer link Related questions How can the concentration of water in solution be decreased? How can the concentration of a solution be increased? How do you find the concentration of a solution in ppm? How do you make a 10 percent solution? How do you make a 2 percent solution? What is the weight per volume method to calculate concentration? What percent concentration of KCl would be isotonic? What is the percent concentration of sodium chloride in normal saline? What is the percent concentration of a 6m solution of NaCl? What is the percent concentration formula? See all questions in Percent Concentration Impact of this question 5670 views around the world You can reuse this answer Creative Commons License