Zinc reacts with aqueous sulfuric acid to form hydrogen gas

Asked by maham237 @ in Chemistry viewed by 306 People

Zinc reacts with aqueous sulfuric acid to form hydrogen gas: zn(s) + h2so4(aq) → znso4(aq) + h2(g) in an experiment, 201 ml of wet h2 is collected over water at 27°c and a barometric pressure of 733 torr. the vapor pressure of water at 27°c is 26.74 torr. the partial pressure of hydrogen in this experiment is ________ atm.

Answered by maham237 @


The partial pressure of hydrogen = barometric pressure - the vapor pressure of water;
= 733 - 26.74
= 706.26 torr
But 1 atm is equivalent to 760 torr
Therefore, = 706.26/760
= 0.929 atm
Hence, the partial pressure of hydrogen is 0.929 atm

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