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Question | Answer |
1When acids react with metals, they produce _____ gas. | hydrogen |
2.A _____ is produced when a base accepts a hydrogen ion from an acid. | congugate acid |
3.In the Bronsted-Lowry model of acids and bases, an _____ is a hydrogen donor and a _____ is a hydrogen acceptor. | acid,base |
4.The weak acid in the following list is _____. a. hydrochoric acide, sulfuric acid c. nitric acid d. acetic acid | acetic acid |
5.Acids produce_____; they conduct electricity in water | H+ |
6.The pH scale allows scientists to define the acidity of a substance on a scale of _____ | 0-14 |
7.In a titration, the ____ is the point at which the indicator changes color and stays that way | endpoint |
8.A(n) ____ is a substance that produces OH- ions in a solution. | base |
____ change color in the presence of an acid or a base. | indicator |
9.A bitter taste and a slippery feel are clues that a solution is probably a(n) ____ | base |
10.A base that only partly ionizes in a solution is a ____ base | wak |
11.In a ____ reaction, an acid and a base produce a salt and a water. | neutralization |
12.Coffee has a pH of about 5. Coffee is ____. | acidic |
13.What is the pH of blood, given the hydrogen ion concentration is 4.0 10-8 M? | 7.4 |
14.HONORS ONLY:What is the ph of 0.45 M of H2SO4? | .0045 |
15.A solution that contains equal concentrations of hydrogen and hydroxide ions is _____. | neutral |
16.Identify the acid and conjugate base pair in the following equation: HF + H20 --> H30+ + F- | conjugate acid H30+, CB= F- |
17.HONORS ONLY:Calculate the H concentration of an aqueous solution, given the concentration of OH– is 1 x 10^-5 M and the ion product constant for water, KW is 1 x 10^-14. | 1 x 10^–9 M |
18.HONORS ONLY:Calculate the pOH of a 0.410 M Ba(OH) solution. | 8.62x10^-2 |
A basic solution contains more ________ ions than hydrogen | hydroxide |