When the compounds analyzed by Robrob were passed on to the next test, another scientist, Kikoko, needed to determine the molecular weight of the ctive compound. They created a solution with a concentration of 20.0%w/w from the solid active compound and the solution had a density of 1.40 g/mL. From this solution, 10µL was taken and mixed with 190µL of reagent and water. It was analyzed and showed a concentration of 5x104 M compound. a. What is the concentration (in molarity) of the 20%w/w solution? b. Why was the concentration of the solution expressed as %w/w initially? c. What is the molecular weight of the active compound?

When the compounds analyzed by Robrob were passed on to the next test, another scientist, Kikoko, needed to determine the molecular weight of the ctive compound. They created a solution with a concentration of 20.0%w/w from the solid active compound and the solution had a density of 1.40 g/mL. From this solution, 10µL was taken and mixed with 190µL of reagent and water. It was analyzed and showed a concentration of 5x104 M compound. a. What is the concentration (in molarity) of the 20%w/w solution? b. Why was the concentration of the solution expressed as %w/w initially? c. What is the molecular weight of the active compound?

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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