We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAlex Griffith
Modified over 2 years ago
Ch Acids & Bases II. Strength of Acids & Bases (p ) Strong vs. Weak pH
A. Strong vs. Weak Strong Acid/Base Strong Acid/Base 100% ions in water strong electrolyte HCl, HNO 3, NaOH, LiOH Weak Acid/Base Weak Acid/Base few ions in water weak electrolyte HC 2 H 3 O 2, NH
B. pH Scale 0 7 INCREASING ACIDITY NEUTRAL INCREASING BASICITY 14 pH pH a measure of the concentration of H 3 O + ions in solution measured with a pH meter or an indicator with a wide color range
B. pH Scale pH of Common Substances
Which of the following "molecular" pictures best represents a concentrated solution of the weak acid HA? ConcepTest A B
Is the following statement TRUE or FALSE? A strong acid has a lower pH than a weak acid. FALSE - Strong/weak refers to amount of ionization whereas pH refers to concentration of H +. ConcepTest
Chapter 19 Self-Ionization of Water and pH. Strong vs. Weak Strong: 100% dissociation of H + or OH – – Strong electrolytes (conduct electricity very well)
Acids and Bases. Ionization of Water H 2 O + H 2 O H 3 O + + OH - K w = [H 3 O + ][OH - ] = 1.0
TOPIC: pH 1. NaCl 2. C 2 H 5 OH 3. H 2 SO 4 4. NaOH 5. C 12 H 22 O CaI 2 7. HF 8. Mg(OH) 2 9. NH 3 10.CH 3 COOH Do Now: Identify as acid, base, salt,
PH of Weak Acids AP Chemistry Unit 9 Chapter 14. Strengths of Acids and Bases “Strength” refers to how much an acid or base ionizes in a solution. STRONGWEAK.
Salts and pH. Soluble salts dissociate in water to produce ions. Salts are basically ionic compounds that can be formed from the reaction from an acid.
Ch.15: Acid-Base and pH Part 1. Self-Ionization of Water Pure water is a VERY weak electrolyte It undergoes self-ionization H 2 O (l) + H 2 O (l) H 3.
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.
CHAPTER 9 CONCURRENT ENROLLMENT. ACIDS AND BASES WEAK ACIDS AND BASES ONLY A FEW IONS ARE FORMED DEFINITIONS –Arrhenius - Acid contains H + ions and Bases.
pH Water Water is in equilibrium with its ions H 2 O(l) H + (aq) + OH - (aq) K w = [H + ][OH - ] K w = 1.0 x at 25°C In neutral solutions [H.
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.
Go over Ch Test Summary of this week Questions over the reading Discussion / explanation Homework.
Continuing into the world of acids and bases…. pH of a solution is the negative logarithm of the hydrogen ion concentration pH = -log [H + ] This.
III. Titration (p. 493 – 503) Ch. 15 & 16 – Acids & Bases.
Mixtures & Solutions Biology. Mixtures Combination of substances where components retain their own properties Do not combine chemically Are the following.
Intro to Acids & Bases General Properties Indicators Neutralization Reactions.
Intro to Acids & Bases. Ions in Solution ____________ – contain more H + than OH - ____________ – contain more OH - than H + ____________ – contain equal.
NOTES 10 – Acids, Bases, & pH. Ion Review An ion is an atom that gains or loses electrons giving it an overall positive or negative charge An ion is an.
Chapter 14 Acids, Bases, and pH. Comparing of Acids and Bases Observable properties – – Acids are sour – Bases are bitter and slippery to touch *** note.
PH. pH—Scale to measure how acidic or basic a solution is 0-14 Pure water is 7 and neutral (not an acid or base) Acids—less than 7(lower number more acidic)
IV.13. HYDROLYSIS (Hebden p. 144 – 148). Hydrolysis of a Salt Rx between water and cation &/or anion in salt that produces an acidic or basic solution.
Ch. 19 – Acids & Bases II. pH (p. 644 – 658). A. Ionization of Water H 2 O + H 2 O H 3 O + + OH - Self-Ionization of Water.
Acids and Bases. Acids Acids are substances that release hydrogen ions, H +, in solution Acids are substances that release hydrogen ions, H +, in solution.
Hydrogen Ions and Acidity Chapter What is K w ? K w is the equilibrium constant for the self-ionization of water Water molecules are in constant.
1 Acids and Bases. 2 Properties of Acids þ Produce H + (as H 3 O + ) ions in water (the hydronium ion is a hydrogen ion attached to a water molecule)
PH and pOH By: Sam F., Sam D., Rochani, Evan, Will, Sherry, Mariana.
Chapter 16 Acids and Bases Ionization of Water The pH Scale 7-4.
Acids and Bases. Arrhenius Theory Acids produce H + ions. Acids produce H + ions. Bases produce OH - ions. Bases produce OH - ions. HCl H + + Cl - NaOH.
Acids, Bases, and Solutions A hydrogen ion (H + ) is an atom of hydrogen that has lost its electron. An acid is any substance that produces hydrogen ions.
Properties of acids n Taste Sour (kids, dont try this at home). n Conduct electricity. n Some are strong, some are weak electrolytes. n React with metals.
Occasionally, a hydrogen atom shared by two water molecules shifts from one molecule to the other. Occasionally, a hydrogen atom shared by two water molecules.
© 2016 SlidePlayer.com Inc. All rights reserved.