Chemistry questions?

Question

5. A sample of nitrogen occupies a volume of 546 mL at STP. What volume would the nitrogen occupy at 177 degree Celcius under a pressure of 7.35 psi?
A 91 mL
B 273 mL
C 900 mL
D 1.09 * 103 mL
E 1.80 * 103 mL
6. Calculate the volume occupied by 0.588 g of NH3 at STP, if it behaves ideally.
A 0.502L
B 0.368 L
C 0.621 L
D 0.775 L
E 0.804 L
7 At STP, 4.00L of a pure diatomic gaseous substance has a mass of 6.84 grams. The substance is
A Argon gas
B Fluorine gas
C helium gas
D Oxygen gas
E nitrogen gas.
8. Calculate the density of O2, in g/L at STP
A 0.810 g/L
B 1.43 g/L
C 1.62 g/L
D 0.714 g/L
E 1.14 g/L
9. What mass of CH4 is contained in a 500. mL sample of Ch4 at -40.0 degress Celcius and 300. torr?
A 0.0870 g
B 0.165 g
C 0.322 g
D 0.734 g
E 1.06 g
10. What is the pressure exerted by a misture of 14.0 grams of N2, 71.0 grams of Cl2 and 16.0 grams of He in a 50.0 liter container at 0 celcius?
A 2.47
B 6 .80
C 14.1
D 4. 66
E. 0.687
all at atm

thank alot

Answer 1

C
B
D
D
A
E