he mass of solute (glucose) and the mass of solvent (water). alve Mass % of glucose omment The mass percentage of water in this solution is (100 11.9) % = 88.1%. b) Analyze In this case we are given the number of micrograms of solute. Because 1 µg is 1 x 10g, 5.4 µg = 5.4 x 10 g. Plan We calculate the parts per million using Equation 13.6. 5.4 X 106g 2.5 g Solve ppm = mass glucose mass soln mass of solute mass of soln ge by using Equation 13.5. The mass of the solutie age of sol X 106 - X 100 = 13.5 g 13.5 g + 100 g 0/ X 106 = 2.2 ppm Practice Exercise 1 Calculate the mass percentage of NaCl in a solution containing 1.50 g of NaCl in 50.0 g of water. (a) 0.0291%, (b) 0.0300%, (c) 0.0513%, (d) 2.91%, (e) 3.00%. X 100 = 11.9% Practice Exercise 2 A commercial bleaching solution contains 3.62% by mass of sodium hypochlorite, NaOCI. What is the mass of NaOCl in a bottle containing 2.50 kg of bleaching solution? Mole Fraction, Molarity, and Molality Concentration expressions are often based on the number of moles of one or more components of the solution. Recall from Section 10.6 that the mole fraction of a compo- nent of a solution is given by MacBook Pro & #
he mass of solute (glucose) and the mass of solvent (water). alve Mass % of glucose omment The mass percentage of water in this solution is (100 11.9) % = 88.1%. b) Analyze In this case we are given the number of micrograms of solute. Because 1 µg is 1 x 10g, 5.4 µg = 5.4 x 10 g. Plan We calculate the parts per million using Equation 13.6. 5.4 X 106g 2.5 g Solve ppm = mass glucose mass soln mass of solute mass of soln ge by using Equation 13.5. The mass of the solutie age of sol X 106 - X 100 = 13.5 g 13.5 g + 100 g 0/ X 106 = 2.2 ppm Practice Exercise 1 Calculate the mass percentage of NaCl in a solution containing 1.50 g of NaCl in 50.0 g of water. (a) 0.0291%, (b) 0.0300%, (c) 0.0513%, (d) 2.91%, (e) 3.00%. X 100 = 11.9% Practice Exercise 2 A commercial bleaching solution contains 3.62% by mass of sodium hypochlorite, NaOCI. What is the mass of NaOCl in a bottle containing 2.50 kg of bleaching solution? Mole Fraction, Molarity, and Molality Concentration expressions are often based on the number of moles of one or more components of the solution. Recall from Section 10.6 that the mole fraction of a compo- nent of a solution is given by MacBook Pro & #
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 104SCQ: Sodium chloride (NaCl) is commonly used to melt ice on roads during the winter. Calcium chloride...
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