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.
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter6: Solutions And Colloids
Section: Chapter Questions
Problem 6.109P
Related questions
Question
![4.
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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F31ffdff5-9c2b-49c3-875a-b088bc454a81%2F4b8653e8-5cb3-43c0-965e-fad780c7b224%2Fxq8qusn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.
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.
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