| AP Chemistry - Electrolytes Worksheet | |
| 1. | What is an electrolyte? What is a nonelectrolyte? |
| 2. | Define dissociation as it applies to ionic compounds that dissolve
in water. What does hydration mean? |
| 3. | Write equations for the dissocation of the following ionic compounds in water: |
| (a) LiCl, (b) BaCl2, (c) Al(C2H3O2)3,
(d) (NH4)2CO3, (e) FeCl3
|
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| 4. | Write equations for the dissocation of the following ionic compounds in water: |
| (a) CuSO4, (b) Al2(SO4)3,
(c) CrCl3, (d) (NH4)2HPO4, (e)
KMnO4 |
|
| 5. | Write chemical equations that show what happens when these solid ionic compounds dissolve in water: |
| (a) MgCl2 (b) Al(NO3)2 (c) Na2CO3
(d) (NH4)2SO4 |
|
| 6. | What is the difference between a strong electrolyte and a weak
electrolyte? Formic acid, HCHO2, is a weak acid. Write a chemical
equation showing its reaction with water. |
| 7. | Write an equation showing the reaction of water with itself for
form ions. |
| 8. | What is the apparent degree of dissociation of a solution prepared
by dissolving 0.0500 mole of Ca(NO3)2 is 500 g of water
if the solution behaves as if only 0.0785 mole of solute had dissociated?
|
| 9. | If a 0.5 M solution of BaI2 is totally dissociated
into Ba2+ ions and I- ions, what is the molar concentration
of each ion? |
| 10. | One hundred mL of 0.40 M HNO3 is mixed with 400 mL of 0.50 M Ca(NO3)2. Assume both compounds are 100 percent dissociated. Find the concentration of these ions in solution. |
| a) H+ (H3O+), b) Ca2+, c) NO3- | |
| 11. | How many mg of metallic ions are in 1.0 mL of these solutions? |
| a) 0.10 M LiNO3, b) 0.20 M CuSO4.5H2O, c) 0.50 M Al(NO3)3. | |