1. 50 g glucose should be weighed to prepare 250 mL of glucose aqueous solution of 15% by mass. II. To prepare 150 mL of an aqueous solution containing 25% Ethyl alcohol by volume, 112.5 mL of water should be added. III. To prepare 1 M 250 mL of NaOH solution, 15 g NaOH is weighed and dissolved in water. (MNAOH: 40 g/mol) IV. In the solution prepared with 0.25 moles of ammonia (NH3) and 90 mL of water, the mole percentage of ammonia is 8%. Which or which of the above statements are false?

1. 50 g glucose should be weighed to prepare 250 mL of glucose aqueous solution of 15% by mass. II. To prepare 150 mL of an aqueous solution containing 25% Ethyl alcohol by volume, 112.5 mL of water should be added. III. To prepare 1 M 250 mL of NaOH solution, 15 g NaOH is weighed and dissolved in water. (MNAOH: 40 g/mol) IV. In the solution prepared with 0.25 moles of ammonia (NH3) and 90 mL of water, the mole percentage of ammonia is 8%. Which or which of the above statements are false?

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 62QAP

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