A solution is made by dissolving 25.0 g of sodium chloride, in 265 g of water. Calculate the molality concentration of NaCl in thi solution. Molar mass =58.0 g/mol
A solution is made by dissolving 25.0 g of sodium chloride, in 265 g of water. Calculate the molality concentration of NaCl in thi solution. Molar mass =58.0 g/mol
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. A solution is made by dissolving 25.0 g of sodium chloride, in 265 g of water. Calculate the molality concentration of NaCl in thi solution. Molar mass =58.0 g/mol *
2. Calculate the molarity of a solution made from 50.0 g LiCl in 500 mL of solution. Molar mass = 42.394 g/mol *
3. A solution is prepared by dissolving 70.0 g calcium hydroxide, Ca(OH)2, in 250.0 g of water. Calculate the mole fraction of solute and mole fraction of solvent. Molar mass of Ca(OH)2=58.0 g/mol; Molar mass of water= 18.0 g/mol.
4. A solution is prepared by dissolving 70.0 g calcium hydroxide, Ca(OH)2, in 250.0 g of water. Calculate the mole percent of Ca(OH)2 and H2O . Molar mass of Ca(OH)2=58.0 g/mol; Molar mass of water= 18.0 g/mol.
5. A solution is made by dissolving 85.0 g ethyl alcohol, C2H5OH, in 225.20 g H2O. Calculate the percent by mass of the solution.
6. Determine the molarity 0.444 mol of CoCl2 in 0.654 L of solution.
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