Gallium is a low melting solid that reacts with hydrochloric acid to form hydrogen gas and gallium(III) chloride. In an experiment, excess hydrochloric acid was reacted with 3.50 g of gallium, the recorded pressure was 751 mmHg, and hydrogen gas was collected by water displacement at 50. °C. You must provide the correct number of significant figures in order to get full credit. • Determine the partial pressure in mmHg of hydrogen gas: • Calculate the moles of hydrogen gas produced: • Calculate the volume in L of hydrogen gas produced: • This experiment was repeated to collect more hydrogen gas, except this time, the student forgot to correct for the water vapor that was present. How would this error affect the calculated volume of hydrogen gas produced? Would the calculated volume be smaller, larger, or there is no change as compared to the calculated volume if the water vapor is corrected? o Note: You must type in one of the following 3 responses for full credit, typed in any other way and you will not get credit for this problem. - smaller larger - there is no change
Gallium is a low melting solid that reacts with hydrochloric acid to form hydrogen gas and gallium(III) chloride. In an experiment, excess hydrochloric acid was reacted with 3.50 g of gallium, the recorded pressure was 751 mmHg, and hydrogen gas was collected by water displacement at 50. °C. You must provide the correct number of significant figures in order to get full credit. • Determine the partial pressure in mmHg of hydrogen gas: • Calculate the moles of hydrogen gas produced: • Calculate the volume in L of hydrogen gas produced: • This experiment was repeated to collect more hydrogen gas, except this time, the student forgot to correct for the water vapor that was present. How would this error affect the calculated volume of hydrogen gas produced? Would the calculated volume be smaller, larger, or there is no change as compared to the calculated volume if the water vapor is corrected? o Note: You must type in one of the following 3 responses for full credit, typed in any other way and you will not get credit for this problem. - smaller larger - there is no change
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter5: Gases
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Transcribed Image Text:Gallium is a low melting solid that reacts with hydrochloric acid to form hydrogen gas and gallium(III)
chloride. In an experiment, excess hydrochloric acid was reacted with 3.50 g of gallium, the recorded
pressure was 751 mmHg, and hydrogen gas was collected by water displacement at 50. °C.
You must provide the correct number of significant figures in order to get full credit.
• Determine the partial pressure in mmHg of hydrogen gas:
• Calculate the moles of hydrogen gas produced:
• Calculate the volume in L of hydrogen gas produced:
• This experiment was repeated to collect more hydrogen gas, except this time, the student forgot to
correct for the water vapor that was present. How would this error affect the calculated volume of
hydrogen gas produced? Would the calculated volume be smaller, larger, or there is no change as
compared to the calculated volume if the water vapor is corrected?
o Note: You must type in one of the following 3 responses for full credit, typed in any other way
and
you will not get credit for this problem.
• smaller
larger
. there is no change
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