Need to complete this table..?

Question

A.) P= 875 torr V=275 mL N=0.0105 mol T= ?
B.) P=? V=0.100 L N=0.200 mol T= 38 degrees C
C.) P=2.50 atm V=? N=3.00 mol T=557.33 degrees F
D.) P=688 mmHg V=986 mL N=? T=565 K

Answer 1

For each problem, just use the ideal gas law to calculate the value you do not know. You're going to have to do some conversion of values in order to use the PV=nRT equation. So, volumes must be in L, pressure in atm, T in Kelvin.

Once you've gotten the thinks you know to have the correct units, just plug them into the equation and solve for the one you don't know.

Answer 2

PV= nRT

P is pressure in atm
V is volume in L
n is moles
R is the gas constant(0.0826 L*atm/mol*K)
T is temp in K( degrees C + 273)

a. Solve for T..... T=PV/nR

Convert P to atm by dividing by 760torr
Covert V to L by dividing by 1000

Plug in numbers into equation


b. Convert T of degrees C to K by adding 273 solve for P using

nRT/V = P

c. Change degrees F to C then to K
Solve for V using

nRT/P= V

d. solve for n using

PV/RT= n

change mmHg to atm by dividing by 760
change volume to L by dividing by 1000

Answer 3

In each case you can use the ideal gas law equation PV = nRT

R = 0.08206 L atm/ K mol

In each case, so that you obtain the correct units for your calculation, you must use Kelvin temp for T, atm for P, mol for n, and liters for V.

A) T = PV/nR
B) P = nRT/V
C) V = nRT/P
D) n = PV/RT

Just remember to use atmospheres for pressure, liters for volume, and kelvn temp