c127e2p1f2000

1. In 3.0 L of 0.40 M A₂(SO₄)₃ solution, the total numer of moles of ions is

   0.40 1.2 2.0 3.0 5.0 6.0

2. Enough water must be added to 2.00 L of 0.375 M (NH₄₂SO₄ solution so that it is diluted to forma a solution has has a concentration of 0.125M. What is the volume of the diluted solution?

   1.00 Liter 2.00 Liter 3.00 Liter 4.00 Liter 5.00 Liter 6.00 Liter

3. In the analysis of an unknown chloride in Experiment5, the endpoint of the titration was determined by observing
   1. the redox reaction between chloride ions (C^-) and chromate ions (Cr₂O₇^2-) to form chlorine gas
   2. the redox reaction between silver ions (Ag⁺) and chromate ions (Cr₂O₇^2-) to form metallic silver
   3. the precipitation reaction between potassium ions (K⁺) and chloride ions (C^-)
   4. the precipitation reaction between silver ions (Ag⁺) and chromate ions (Cr₂O₇^2-) to form silver chromate
   5. the color change of phenolphthalein

   1 2 3 4 5

4. In the analysis of copper hydrate (Experiment 6) a students gets the following results,
   3.545 g C , 6.355 g Cu and 3.600 g water
   What is the simplest formula of the hydrate
   1. Cu₂C : 2H₂O
   2. CuC : H₂O
   3. CuC₂ : H₂O
   4. CuC₂ : 2H₂O
   5. CuC : 2H₂O
   6. none of these

   1 2 3 4 5 6

1. NaMnO₄
2. O₂
3. CaH₂
4. SO₃^2-

1. The ratio of effusion of the gas at 30.0 is

   greater than less than equal to need more information the rate of effusion of the gas at 60^oC

2. The pressure in the tank is

   greater than less than equal to need more information

3. The number of moles of gas in the tank at 30^o is

   greater than less than equal to need more information the number of moles of gas in the tank at 60.0^oC

4. The kinetic energy of the molecules in the tank at 30.0^oC is

   greater than less than equal to need more information the kinetic energy of the molecules in the tank at 60^oC

1. The molar mass of the gas in Tank A is

   greater than less than equal to need more information the molar mass of the gas in tank B.

2. The density of the gas in tank A is

   greater than less than equal to need more information the density of the gas in tank B.

3. The time it will take for all the has to leak out of tank A is

   greater than less than equal to need more information the time it will take for all hte gas to leak out of tank B.

4. The average translational kinetic energy of the molecules in tank A is

   greater than less than equal to need more information the average translational kinetic energy of the molecules in tank B

5. Consider the following pairs of reactants in aqueous 0.1 M solution. For each write abalanced net ionic equation (using smallest whole number coefficients) for the reaction resulting between the species. If no reaction occurs, write NO REACTION.
   1. hydrobromic acid and methylamine (CH₃NH₂)
   2. hydrofluoric acid and strontium hydroxide
   3. hydrochloric acid and silver nitrate

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