Question

A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temp of 112 degrees Celsius. What is the final volume of the gas, in milliliters, when the pressure and temp of the gas is changed to
A.) 658 mmHg and 281K?
B.) 0.55 atm and 75 degrees C
C.)15. 4 atm and -15 degrees C

Please help !

Answer 1

Use (P1V1/T1) = (P2V2/T2)
P is in atm, T in kelvin, V will be in L and convert to mL. R is 0.08205 L*atm/mol*k
For a you will need to convert mm Hg to atm. atm = 658/760 = ?
For b you have atm, you will need to convert C to K. 273 + C = K
For c same conversions as b.
Post your work if you would like for me to check your answers.

Answer 2

658mmhg and 281 k

Answer 3

for a i got 743