A 6.28L sample of methane was collected over water at 15°C until the pressure in the flask was 711 torr. A small amount of CaSO4(s) was then added to the flask to absorb the water vapor (forming CaSO4-2H20(s)). What is the pressure inside the flask once all the water is absorbed? Assume that the addition of CASO4(s) absorbed all the water and did not change the volume of the flask. The pressure in the flask is i torr. How many moles of CH4(g) have been collected?

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Chapter1: Chemical Foundations
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A 6.28L sample of methane was collected over water at 15°C until the pressure in the flask was 711 torr. A small amount of CaSO4(s)
was then added to the flask to absorb the water vapor (forming CaSO4+2H2O(s)).
What is the pressure inside the flask once all the water is absorbed? Assume that the addition of CASO4(s) absorbed all the water
and did not change the volume of the flask.
The pressure in the flask is
i
torr.
How many moles of CH4(g) have been collected?
i
mol
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Transcribed Image Text:Current Attempt in Progress A 6.28L sample of methane was collected over water at 15°C until the pressure in the flask was 711 torr. A small amount of CaSO4(s) was then added to the flask to absorb the water vapor (forming CaSO4+2H2O(s)). What is the pressure inside the flask once all the water is absorbed? Assume that the addition of CASO4(s) absorbed all the water and did not change the volume of the flask. The pressure in the flask is i torr. How many moles of CH4(g) have been collected? i mol Attempts: 0 of 15 used Submit Answer Save for Later nP@ t ST國 DEC 9. MacBook Air
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