46.29 g of KOH is dissolved in 250. mL of water. (Please pay attention to sig figs!) What is the mass percent of KOH in this solution? (use the density of water 1.00g/mL) a. b. What is the concentration, expressed in molal (m = moles solute/kg solvent), of this initial solution? What is the concentration, expressed in molar (M = moles solute/liters solvent), of this initial solution? (assume that the addition of the KOH to the water did not change the volume, which is still 250.mL) %3D C. d. If I add 500.mL of pure water to this 250.mL solution, what is the new concentration expressed in molar (M)? (Careful, what is the new volume after mixing?) e. If, instead, I took the 250. mL solution and evaporated the water until the solution had a volume of 150.mL, what would be the concentration of this this new solution expressed in molar (M)?

46.29 g of KOH is dissolved in 250. mL of water. (Please pay attention to sig figs!) What is the mass percent of KOH in this solution? (use the density of water 1.00g/mL) a. b. What is the concentration, expressed in molal (m = moles solute/kg solvent), of this initial solution? What is the concentration, expressed in molar (M = moles solute/liters solvent), of this initial solution? (assume that the addition of the KOH to the water did not change the volume, which is still 250.mL) %3D C. d. If I add 500.mL of pure water to this 250.mL solution, what is the new concentration expressed in molar (M)? (Careful, what is the new volume after mixing?) e. If, instead, I took the 250. mL solution and evaporated the water until the solution had a volume of 150.mL, what would be the concentration of this this new solution expressed in molar (M)?

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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