Magnesium reacts vigorously with mineral acids to produce a salt and hydrogen gas in an exothermic reaction. A student reacted 0.361 g of magnesium with excess sulfuric acid and measured the volume of hydrogen generated. When the magnesium had completely reacted, there was 385 mL of gas in the syringe. The apparatus used by the student is shown. generated hydrogen gas syringe sulfuric acid magnesium a) Write a balanced chemical equation for this reaction between magnesium and sulfuric acid. b) Calculate the volume of hydrogen that is generated at 25.0°C and 100 kPa. c) Assuming that the method was valid and the gas syringe was accurate, give ONE reason why there might be a difference between theoretical yield and the amount recorded.

Magnesium reacts vigorously with mineral acids to produce a salt and hydrogen gas in an exothermic reaction. A student reacted 0.361 g of magnesium with excess sulfuric acid and measured the volume of hydrogen generated. When the magnesium had completely reacted, there was 385 mL of gas in the syringe. The apparatus used by the student is shown. generated hydrogen gas syringe sulfuric acid magnesium a) Write a balanced chemical equation for this reaction between magnesium and sulfuric acid. b) Calculate the volume of hydrogen that is generated at 25.0°C and 100 kPa. c) Assuming that the method was valid and the gas syringe was accurate, give ONE reason why there might be a difference between theoretical yield and the amount recorded.

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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