20. What is the numerical difference between each number on the pH scale?
Ten times from 4 to 1 is a difference in 103. The exponent is one less than the number of digits
21. Describe how to make a buffered solution.
Place a weak acid and a compound with its strong conjugate base in the solution
22. What happens to the pH in a titration curve?
The pH rises rapidly when the solution nears the equivalence point
23. On the pH scale, what numbers are acidic, basic, and neutral?
7 is neutral less than 7 is acidic greater than 7 is basic
24. Give the characteristics of an acid and a base.
Acid Base
Tastes sour Tastes bitter
Produces H+ in solution Produces OH- in solution
Produces H2 gas with active metals Feels slippery
Turns blue litmus red Turns red litmus blue
Both
If a strong acid or base, it is a good electrolyte.
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