Assignment Questions Use the factor label to solve the following problems in the space provided. Remember to show complete work and cancel all undesired units. 1. Write the conversion equivalence for urea molecules; CH4N2O in terms of mole-particle- mass. 2. Calculate the number of moles of the indicated substance in each of the following samples: a. 41.5 g MgCl2 b. 135 g N₂O c. 12.5 g Ar 3. A bottle contains 854 mols of bromine molecules, how many molecules of bromine are in this bottle?
Assignment Questions Use the factor label to solve the following problems in the space provided. Remember to show complete work and cancel all undesired units. 1. Write the conversion equivalence for urea molecules; CH4N2O in terms of mole-particle- mass. 2. Calculate the number of moles of the indicated substance in each of the following samples: a. 41.5 g MgCl2 b. 135 g N₂O c. 12.5 g Ar 3. A bottle contains 854 mols of bromine molecules, how many molecules of bromine are in this bottle?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 33QAP: A lead ore, galena, consisting mainly of lead(II) sulfide, is the principal source of lead. To...
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