Solutions to January Exam review #4

1.     B ( Remember the graphical relationship is hyperbolic)

2.     D (should read 70 g/mole) Equal volumes of ideal gases exposed to the same conditions of pressure and temperature contain the same number of molecules and so have the same number of moles. 1.4/28 = 0.05 moles. 3.5/0.05=70.

3.     A

4.     D

5.     B

6.     C

7.     C (donít forget to convert to K)

8.     A...

9.

 

 

 

10.a The ratio is 2:1, so there are 3.5 X 2 = 7 moles

 

b.

 

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