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1)  If the pressure on  56   mL  vol. of a confined gas is increased from 720 mmHg to 760 mmHg while t emperature increased from 25 ° C to 35 ° C . What is the final volume?    

 

 

 

 

 

 

 

 

 

 

 

2)  Using the ideal gas law to calculate  the  mol of  a gas  at -2 6 °C and .09   atm  with a volume of 23mL

 

 

 

 

 

 

 

 

 

 

 

 

3)  Define colligative properties and list  four (4) of  them:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4)  In Ex: 12 there was a reaction between sulfamic acid and sodium nitrite  which produced nitrogen, water and sodium bisulfate.  (sulfamic acid is H 2 NSO 3 H (s)  )

( A) Give the formula of the reactants

 

 

 

 

( B) Write the complete reaction 

 

 

 

 

 

 

 

 

5)  The volume for the ideal perfect gas been determine to be 22.4133  L.                                                             Show how this value was calculated.

 

 

 

 

 

 

 

 

 

 

 

6)  In the lab what does it mean when there is no water flowing from the  Florence  flask to the beaker and  the entire solid has reacted? 

 

 

 

 

 

 

 

 

 

 

 

 

 

7)  True or False: In Ex: 12 we could calculate the number of moles that where collected because one mole of nitrogen gas is produced for every mole of sulfamic acid.

 

 

 

 

 

 

8)  When a solute is add to a pure solvent, what effects does the solute have on      freezing and boiling point of the solution?

 

 

 

 

 

 

 

 

 

 

 

 

 

9)  What are the similarities between Boyle’s Law and Charles’s Law?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10)  In Experiment # 13.

(A)   Why is Naphthalene used in this expe riment instead of water? 

 

 

 

 

 

 

 

( B) Draw a graph to  depict the freezing point depression of pure Naphthalene   

 

 

 

 

 

 

 

 

 

 

 

11) .   What is the mathematical equation of the rate equation expressed as?

 

 

 

 

 

 

 

 

 

 

12) What is the mathematical equation for the average rate of a reaction?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13)   What is the expected freezing point of a solution that contains 25.0 g of fructose, C 6 H 12 O 6 , in 250.0 g of water? ( 1 mol C 6 H 12 O 6  = 180 g, and K f  = 1.86 o C m -1 )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14) Ten moles of hydrogen gas at 0 o C are forced into a cylinder with a volume of 300 mL. What is the pressure of the gas inside the cylinder, in atmosphere?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15 )  Identify the following laboratory  equipment, as

(Place the alphabet by the number on the following sheet.)

(1 – 20)

  a.  watch glass b.  test tube clamp c.  ring stand d.  beaker e.  graduated cylinder f.  buret g.  Erlenmeyer flask h.  Clay triangle i.  Graduated pipet j.  Test tube k.  Florence  flask l.  Buret clamp m.  Spatula n.  Utility clamp o.  Pinch clamp p.  Wash  bottle q.  Funnel r.  Medicine dropper s.  Volumetric pipet t.  Crucible tongs

 

 

 

 

 

 

 

 

 

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