Air from the prairies of North Dakota inwinter contains essentially only nitrogen, oxygen, and argon. A sample of air collected a Bismark at -22 degrees celcius and 98.90 kPa had 78% N2, 21% O2 and 1% Ar. Find the parcial pressures for each gas.
Steps please.
2007-04-23 14:07:46 · 2 answers · asked by kickitup21 1 in Science & Mathematics ➔ Chemistry
ok, so first the total of all the gases together are 98.90. So to get the parcial pressure for each gas, multiply the percents times 98.90, be sure to change the percents back to decimals.
multiply 98.90* 0.78= 77.142 kPa of N2
Multiply 98.90* 0.21= 20.769 kPa of O2
Multiply 98.90* 0.01= 0.989 kPa of Ar
2007-04-23 14:24:33 · answer #1 · answered by *aimee* 1 · 0⤊ 0⤋
Not too many. Just multiply each percent by the total pressure and express the result in kPa or whatever. PS. Who is nuts enough to collect a sample of air at -22 degC?
2007-04-23 21:15:12 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋