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pH worksheet (#1)
1. What is the pH of a solution with a hydrogen ion concentration of 11. What is the pH of a solution with a hydrogen ion concentration of 1.0 x 10-5 M? pH = -log [H+] = - log (1.0 x 10-5 ) = 5
2. What is the pH of a solution with a hydrogen ion concentration of 42. What is the pH of a solution with a hydrogen ion concentration of 4.5 x 10-8 M? pH = -log [H+] = - log (4.5 x 10-8 ) = 7.34
3. What is the pOH of a solution with a hydrogen ion concentration of 1.0 x 10-10 M?pH = -log [H+] = - log (1.0 x ) = 10 Now use: pH + pOH = 14 14 – 10 = 4, so the pOH = 4
We need to use: pOH = - log [OH-]4. What is the pOH of a solution with a hydroxide ion concentration of 1.0 x M? We need to use: pOH = - log [OH-] pOH = - log [1.0 x ] pOH = 10
5. What is the hydroxide ion concentration in a solution with a pH of 5?pH = - log [ H+] - pH = log [ H+] 10x (- pH) = 10x log [ H+] 10x (- 5) = 10x log [ H+] 10-5 = [ H+] = 1.0 x M
This is our [H+], we need [OH-]We need to use: [H+] x [OH-] = 1.0 x M [1.0 x M] x [OH-] = 1.0 x M [1.0 x M] [1.0 x M] = 1.0 x 10 -9
6. What is the hydrogen ion concentration in a solution with a pH of 9pH = - log [ H+] - pH = log [ H+] 10x (- pH) = 10x log [ H+] 10x (- 9.7) = 10x log [ H+] = [ H+] = 2.0 x M
7. What is the hydronium ion concentration of a solution with a pH of 2.5?pH = - log [ H+] - pH = log [ H+] 10x (- pH) = 10x log [ H+] 10x (- 2.5) = 10x log [ H+] = [ H+] = 3.2 x M
Intro to Acids & Bases.
Acids, Bases, and Solutions
Hydrogen Ions and Acidity
Ch. 19 – Acids & Bases II. pH (p. 644 – 658).
PH and pOH Chem 332 – ODette. pH (Potential of Hydrogen) Measures the degree of acidity or basicity of an aqueous solution Corresponds to the hydrogen.
PH and Concentration. pH Recall water H 2 O H + + OH - Every water molecule produces one hydrogen ion and one hydroxide ion At equilibrium, K eq = [products]
PH (potential of Hydrogen). According to the Bronsted-Lowry theory, both acids and bases are related to the concentration of hydrogen ions. Acids will.
PH Relative concentration of H + ions in water HOH ↔ H + + OH - O HH
Aqueous solutions & concepts of pH Chapter I. Ion Product constant - water A. Acids→ hydronium ions (H 3 O+) Bases → hydroxide ions (OH-) B.Self.
Measuring pH and pOH.
Chapter 16 Acids and Bases
Measuring pH and pOH Also Known As…
Chemistry Chapter Acids and Bases. (Self-Ionization of Water) H 2 O + H 2 O H 3 O + + OH - Two water molecules collide to form Hydronium and.
Mr. Chapman Chemistry 30. We are ready to use what we know about acids and bases to calculate the pH of various solutions. Before we do this, however,
PH. There is a formula to find pH pH = -log [H + ] or pH = -log [H 3 O + ] – (brackets around a substance means that substances concentration in molarity)
The pH scale.
Ways to measure Acidity/Basicity What is pH? What is pOH?
Ch.15: Acid-Base and pH Part 1.
Acids, Bases, and pH. Acids and Bases Acids produce H + ions which react with water to form hydronium (H 3 O + ) ions Bases produce OH - ions.
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