150.0 mL flask contains 740. g of N2 at 0°C.
What is the pressure in atm.
What is the pressure in torr?
What is the pressure in psi?
I know you have to do:
n = grams/molar mass
Then PV = nRT
R in 0.08206 L.atm/mol.K gives P in atm
atm x 760 = p in torr
1 atm = 14.7 psi
3 answers
Show your work. Probably you aren't following my instructions OR I goofed somewhere.
I really struggle in chemistry sometimes I know the formulas but I don't know how to put the correct numbers where they need to be .
Knowing the formulas won't do much good if you don't know how to use them. It is important to use the right units.
Looking at the last problem for which you posted your work, see if my correction helps you in the others. If post specific questions, show your work, and explain what your trouble is and we can help you through.
For PV = nRT
p is in atm, V in L, R is 0.08206 and T in kelvin.
If p in kPa, V in L, R is 8.314 and T in kelvin.
n in both cases is grams/molar mass
Looking at the last problem for which you posted your work, see if my correction helps you in the others. If post specific questions, show your work, and explain what your trouble is and we can help you through.
For PV = nRT
p is in atm, V in L, R is 0.08206 and T in kelvin.
If p in kPa, V in L, R is 8.314 and T in kelvin.
n in both cases is grams/molar mass
1 answer