Posted by Lizy on Thursday, May 1, 2008 at 6:37pm.
I just remember two gas laws. The general one is PV = nRT. The other one is
P1V1/T1 = P2V2/T2 which I use when no number of mols is given.
I also remember that 1 mol of a gas at STP occupies 22.4 L.
Nothing to combine that way. But if you will post a specific question, perhaps we still can help.
The gas law that I'm refering to is P1v1/T1=P2V2/T2. The question that I have to answer is:
P1V1/T1=P2V2/T2
P1
600 mm Hg = an answer in the blank bok that I was not able to provide.
atm (round to hundredths place)
V1
24 mL = an answer in the blank bok that I was not able to provide.
L (round to thousandths place)
T1
18 °C = an answer in the blank bok that I was not able to provide
K
P2
430 mm Hg = an answer in the blank bok that I was not able to provide
atm (round to hundredths place)
v2 = ? with an answer that is suppose to be placed in a black box underneath the v1.
L (round to thousandths place)
T2
24 °C = an answer in the blank bok that I was not able to provide.
K.
The gas law that I'm referring to is P1v1/T1=P2V2/T2. The question that I have to answer is:
P1V1/T1=P2V2/T2
P1
600 mm Hg = an answer in the blank bok that I was not able to provide.
atm (round to hundredths place)
The question wants you to convert mm Hg pressure to atmospheres. The conversion factor is 1 atm = 760 mm Hg. So 600/760 = ?? atm.For what it's worth, pressure can be in any unit, with this formula, as long as you keep the units consistent; i.e., if you use P1 in atm then P2 must be in atm or if you use P1 in mm Hg then P2 must be in mm Hg.
V1
24 mL = an answer in the blank bok that I was not able to provide.
L (round to thousandths place)
The question wants you to convert 24 mL to liters. You know that 1000 mL = 1 L. You convert by 24 mL x (1 L/1000 mL) = ??
T1
18 °C = an answer in the blank bok that I was not able to provide
K Kelvin = 273 + C
P2
430 mm Hg = an answer in the blank bok that I was not able to provide
atm (round to hundredths place)
Converted the same say as P1 above.
v2 = ? with an answer that is suppose to be placed in a black box underneath the v1.
L (round to thousandths place)
I assume you are to calculate V2 since you have all but that one number.
T2
24 °C = an answer in the blank bok that I was not able to provide.
Kelvin = 273 + C.
K.
This is more a question of how to use conversion factors than it is a question a gas laws.