A 0.0500-g sample of magnesium is reacted with 25 mL of 3.0 M sulfuric acid as described in the experimental section. The resulting hydrogen gas is collected over water and is found to have a volume of 51.0 ml. Thetemperature is 25 °C and the atmospheric pressure is 760.00 mm Hg. The column of water height inside thegraduated cylinder is found to be 24.0 mm. 4.What is the number of moles of hydrogen gas in the sample?5. What is the number of moles of metal in the sample? 6. What is the calculated molar mass of the metal for this trial? 7. What is the percent error in this determination?
A 0.0500-g sample of magnesium is reacted with 25 mL of 3.0 M sulfuric acid as described in the experimental section. The resulting hydrogen gas is collected over water and is found to have a volume of 51.0 ml. Thetemperature is 25 °C and the atmospheric pressure is 760.00 mm Hg. The column of water height inside thegraduated cylinder is found to be 24.0 mm. 4.What is the number of moles of hydrogen gas in the sample?5. What is the number of moles of metal in the sample? 6. What is the calculated molar mass of the metal for this trial? 7. What is the percent error in this determination?
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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A 0.0500-g sample of magnesium is reacted with 25 mL of 3.0 M sulfuric acid as described in the experimental section. The resulting hydrogen gas is collected over water and is found to have a volume of 51.0 ml. The
temperature is 25 °C and the atmospheric pressure is 760.00 mm Hg. The column of water height inside the
graduated cylinder is found to be 24.0 mm.
4.What is the number of moles of hydrogen gas in the sample?
5. What is the number of moles of metal in the sample?
6. What is the calculated molar mass of the metal for this trial?
7. What is the percent error in this determination?
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