Question
A flask of hydrogen gas is collected at 1.023 atm and 35 degrees C by displacement of water at 35 degrees C is 42.2 mm Hg. What is the partial pressure of hydrogen gas in the flask?
Not exactly sure where to start with this question, or what formula to use.
Thanks in advance
Not exactly sure where to start with this question, or what formula to use.
Thanks in advance
Answers
DrBob222
Dalton's Law of Partial Pressure.
Ptotal = 1.023 atm from problem.
pH2O = 42.2 mm Hg from problem.
Depending upon how the answer is to be displayed (mm Hg or atm),convert one of the above into the other unit and use Dalton's law.
Ptotla = pH2 + pH2O
You know Ptotal and pH2O, solve for pH2.
Don't let all of that extraneous information confuse you.
Ptotal = 1.023 atm from problem.
pH2O = 42.2 mm Hg from problem.
Depending upon how the answer is to be displayed (mm Hg or atm),convert one of the above into the other unit and use Dalton's law.
Ptotla = pH2 + pH2O
You know Ptotal and pH2O, solve for pH2.
Don't let all of that extraneous information confuse you.