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The pH scale
pH scale This scale is used to determine the concentrat’n of H + ions versus OH - ions Things that are neutral are pH 7, acids are below 7 and bases are above 7
pH scale As you go from pH 7 to pH 8 there are 10 times more OH - ions Every level of the pH scale represents a ten fold (ten times) increase in the concentration of the H + or OH - ions
pH Scale So how much more acidic is lemon juice with pH 2 than saliva pH 6? 10 000! How much more basic is bleach pH 13 than sea water pH 8
Finish in class work Pg 225 1-3
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]
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.
pH Scale and Calculations Chapter 14 Page
Acidity, Basicity, and pH
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.
The pH scale.
Ways to measure Acidity/Basicity What is pH? What is pOH?
Acids and Bases. Ionization of Water H 2 O + H 2 O H 3 O + + OH - K w = [H 3 O + ][OH - ] = 1.0
PH, Acids and Bases.
2-2 Class Review 1. What does pH stand for? A. Phosphorus hydrogen B. Power of Hydrogen C. Potassium Hydrogen D. Pure Hydrogen.
PH is the measurement of the concentration of H+ ions in a solution. (Or how acidic or basic a solution is.) 1. The pH scale has a range from 1 to 14.
PH SW classify substances according to their pH by conducting a lab activity. SW explain the relationship between values on the pH scale by using scientific.
INDICATORS & pH: Part 2 What is the difference between an acid and a base? Acid: H 3 O + (hydronium) ion Base: OH - (hydroxyl) ion Acids: react with metals.
Calculating pH and pOH. pH pH = - log [H + ] [H + ] = the hydrogen ion concentration pH: “potential of hydrogen” - A way of expressing the hydrogen ion.
Acids and Bases- the pH Scale Based on work by K. Foglia
Acids / Bases Foster ESS Study this for the Quiz.
The pH Scale. pH Scale We use this scale to measure the strength of an acid or base. pH is defined as the –log[H+] pH can use the concentration of hydronium.
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