Neutralization 1

HAVE YOU SEEN ME? 2

3

Terminology Acids compound that produces H + ions when mixed with water pH 4

Terminology Acid compound that produces H + ions when mixed with water pH < 7 Base compound that produces OH - ions when mixed with water pH 5

Terminology Acid compound that produces H + ions when mixed with water pH < 7 Base compound that produces OH - ions when mixed with water pH > 7 6

Oxides Synthesis review: M + O 2 (g)  7

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  8

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  M hydroxide Metal oxides are called basic oxides because they form bases when mixed with water. Ionic compound, solid! Na (s) + O 2 (l)  9 BASE

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  M hydroxide Metal oxides are called basic oxides because they form bases when mixed with water. Ionic compound, solid! Na (s) + O 2 (l)  Na 2 O (s) 10 BASE

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  M hydroxide Metal oxides are called basic oxides because they form bases when mixed with water. Ionic compound, solid! 4 Na (s) + O 2 (l)  2 Na 2 O (s) Na 2 O (s) + H 2 O (l)  11 BASE

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  M hydroxide Metal oxides are called basic oxides because they form bases when mixed with water. Ionic compound, solid! 4 Na (s) + O 2 (l)  2 Na 2 O (s) Na 2 O (s) + H 2 O (l)  NaOH (aq) 12 BASE

Oxides Synthesis review: M + O 2 (g)  M oxide M oxide + H 2 O (l)  M hydroxide Metal oxides are called basic oxides because they form bases when mixed with water. Ionic compound, solid! 4 Na (s) + O 2 (l)  2 Na 2 O (s) Na 2 O (s) + H 2 O (l)  2 NaOH (aq) 13 BASE

Oxides Synthesis review: NM + O 2 (g)  14

Oxides Synthesis review: NM + O 2 (g)  NM oxide NM oxide + H 2 O (l)  15

Oxides Synthesis review: NM + O 2 (g)  NM oxide NM oxide + H 2 O (l)  acid Non-metal oxides are called acidic oxides because they form acids when mixed with water. Covalent molecule, gas! SO 3 (g) + H 2 O (l)  16 ACID

Oxides Synthesis review: NM + O 2 (g)  NM oxide NM oxide + H 2 O (l)  acid Non-metal oxides are called acidic oxides because they form acids when mixed with water. Covalent molecule, gas! SO 3 (g) + H 2 O (l)  H 2 SO 4 (aq) 17 ACID Pollutant

Neutralization AB + CD  AD + CB Product of DD reactions: neutralized solution (pH closer to 7) What evidence tells us there was a reaction? 18

Stomach acid What’s in our stomach? HCl (aq) Add an antacid when acid reflux 19

Stomach acid What’s in our stomach? HCl (aq) + Al(OH) 3 (s)  Add an antacid when acid reflux 20

Stomach acid What’s in our stomach? HCl (aq) + Al(OH) 3 (s)  AlCl 3 (aq) + H 2 O (l) Add an antacid when acid reflux 21

Stomach acid What’s in our stomach? 3 HCl (aq) + Al(OH) 3 (s)  AlCl 3 (aq) + 3 H 2 O (l) Add an antacid when acid reflux Why this base? 22

Homework Read 5.1 p. 175 #1 p. 177 #1-7 p. 211 #1-4 23