pH & pOH
What is the pOH of a solution with a pH of 3?
11
What is [H⁺] if pH = 4?
1.0 × 10⁻⁴ M
What is [OH⁻] if pOH = 5?
1.0 × 10⁻⁵ M
If [H⁺] = 1.0 × 10⁻³ M, what is the pH?
3
What ion do acids produce in water?
H+
What is the pH of a solution with a pOH of 6?
8
What is [H⁺] if pH = 2?
1.0 × 10⁻²
What is [OH⁻] if pOH = 9?
1.0 × 10⁻⁹ M
If [OH⁻] = 1.0 × 10⁻⁴ M, what is the pOH?
4
What ion do bases produce in water?
OH⁻
A solution has a pH of 11. Is it acidic, basic, or neutral?
Basic
What is the pH if [H⁺] = 2.5 × 10⁻⁵ M?
4.6
What is the pOH if [OH⁻] = 6.3 × 10⁻³ M?
2.2
If pH = 9, what are the pOH and [OH⁻]?
pOH = 5; [OH⁻] = 1.0 × 10⁻⁵ M
A solution has more H⁺ ions than OH⁻ ions. Is it acidic, basic, or neutral?
Acidic
A solution has a pOH of 12. Is it acidic, basic, or neutral?
Acidic
What is [H⁺] if pH = 6.5?
3.2 × 10⁻⁷ M
What is [OH⁻] if pOH = 3.5?
3.2 × 10⁻⁴ M
If [OH⁻] = 4.0 × 10⁻⁶ M, what are the pOH and pH?
pOH = 5.40; pH = 8.60
What does it mean for an acid to be strong?
It completely ionizes (dissociates) in water
What equation relates pH and pOH?
pH + pOH = 14
What is [H⁺] if pH = 8.75?
1.8 × 10⁻⁹ M
What is [OH⁻] if pOH = 10.25?
5.6 × 10⁻¹¹ M
If [H⁺] = 4.2 × 10⁻⁵ M, what are the pH, pOH, and [OH⁻]?
pH = 4.38; pOH = 9.62; [OH⁻] = 2.4 × 10⁻¹⁰ M
What are two properties of acids and two properties of bases?
Acids have a pH below 7, produce H⁺ ions in water, taste sour, turn blue litmus paper red, react with many metals to produce hydrogen gas, and can react with bases to form water and a salt.
Bases have a pH above 7, produce OH⁻ ions in water, taste bitter, feel slippery, turn red litmus paper blue, and can react with acids