Name: ___________________________________ Period: ______ Acid-Base Review 1. What is a substance that is one color in an acid and another color in a base? ____________________________________________ 2. A(n) ____________________ solution is one in which [H+] is greater than [OH–]. 3. A(n) ____________________ solution is one in which [H+] is less than [OH–]. 4. Match the type of solution with its hydrogen-ion concentration. _______ acidic a. less than 1.0 x 10–7M _______ neutral b. greater than 1.0 x 10–7M _______ basic c. equal to 1.0 x 10–7M 5. The ____________of a solution is the negative logarithm of the hydrogen-ion concentration. 6. Match the type of solution with its pH. _______ acidic a. pH = 7.0 _______ neutral b. pH > 7.0 _______ basic c. pH < 7.0 7. A substance that can act as both an acid and a base is said to be _________________ 8. In a reaction with HCl, is water an acid or a base? ________________________________________________________________________ 9. If a solution has [H+] = 1x10-3M, what is the pH of this solution? ____________________________________________________________________________________________________________ 10. What is the pH of a solution which has [H+] = 3.45 x10-10M? ____________________________________________________________________________________________________________ 11. What is the pH of a 0.00027 M solution of HNO3? ____________________________________________________________________________________________________________ 12. What is the pH of a 0.000034M solution of HBr? ____________________________________________________________________________________________________________ 13. How many more times acidic is a solution with a pH of 2 than a pH of 5? ____________________________________________________________________________________________________________ 14. What are the reactants and the product common to all neutralization reaction? _______________________________________________________________________ 15. By definition, acid rain is rain with a pH of 5.6 or less. What is the [H+] in acid rain that has a pH of 5.6? It is tough - try using a scientific calculator! (hint: remember the opposite operation of a logarithm) Acid Formula Ex. HCl HBr HNO3 H2SO4 H3PO4 H2Se Acid Name Ex. carbonic acid Hydrofluoric acid Citric acid Acetic acid Hydroiodic acid Base Formula Ex. NaOH Ba(OH)2 LiOH Mg(OH)2 Base Name Ex. Sodium hydroxide Strontium hydroxide Name the Acid Positive Ion Negative Ion + H Cl- Acid Name hydrochloric acid Write the formula for the Acid Positive Ion Negative Ion + H CO32- Acid Formula H2CO3 Name the Base Positive Ion Negative Ion Na+ OH- Base Name Sodium hydroxide Write the Formula for the Base Positive Ion Negative Ion Na+ OH- Base Formula NaOH Lithium hydroxide Potassium hydroxide Hydrates 1. What defines a hydrate? 2. How can the water be removed from a hydrous substance? What is the substance now referred to as? Name or write the formula for the following examples: 1. barium hydroxide octahydrate 2. nickel(II)chloride hexahydrate 3. FeSO4 • 7H2O 4. MgCl2 • 6H2O