Please answer all 4 questions Sapling Learning A 1.98 mol increased its volume t

Question

Please answer all 4 questions Sapling Learning A 1.98 mol increased its volume to 28.2L of freon gas was in a balloon. Adding 3.50 mol of freon gas to the balloon was the initial volume of the balloon? Question 18 of 27 Sapling Learning A samplo of an idoal ges has a votume of 2.28 volume is 1.30 L and L at 282 K and 1.13 atr. Calculato tho pressure when the the turnporature is 301 K. Number atm Question 19 of 27 Sapling Learning Ir 35.5 molos of an idoal gas oocupios 55.5 ltiore at 313 K, whal is tho prossuro of tho gas? Question 20 of 27 Sapling Learning 55.5 mol of an ideal gas is at 9.27 atm and 491 K, what is the volume of the gas?

Explanation / Answer

nitial                                final
n1 = 1.96 moles                      n2 = 1.96+3.5   = 5.46moles
V1 =                                  V2 = 28.2L
           V1/n1    =   V2/n2
             V1     =   V2n1/n2
                     = 28.2*1.96/5.46 = 10.123L >>>>>answer

2.
      Initial                      final
      V1 = 2.28L                  V2 = 1.3L
      T1 = 282K                    T2 = 301K
      P1 = 1.13atm                 P2 =
                    P1V1/T1   =   P2V2/T2
                         P2   = P1V1T2/T1V2
                              = 1.13*2.28301/282*1.3   = 0.007 atm
3.n = 35.5moles
V = 55.5 L
T = 313K
PV = nRT
   P = nRT/V
      = 35.5*0.0821*313/55.5   = 16.44atm

4. n = 55.5moles
   P = 9.27atm
   T = 491K
PV = nRT
   V = nRT/P
      = 55.5*0.0821*491/9.27   = 241.34L

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