Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9
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Drill: Calculate the pH of 0.10 M H 2 Z in 0.50 M KHZ. K a1 = 2.0 x 10 -5 K a2 = 5.0 x 10 -9 PowerPoint PPT Presentation


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Drill: Calculate the pH of 0.10 M H 2 Z in 0.50 M KHZ. K a1 = 2.0 x 10 -5 K a2 = 5.0 x 10 -9. Salt or Hydrolysis Reactions. Hydrolysis. Any reaction in which water is decomposed with all or part of its decomposition portions combining with the products. Hydrolysis.

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Drill: Calculate the pH of 0.10 M H 2 Z in 0.50 M KHZ. K a1 = 2.0 x 10 -5 K a2 = 5.0 x 10 -9

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Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Drill: Calculate the pH of 0.10 M H2Z in 0.50 M KHZ.Ka1 = 2.0 x 10-5 Ka2 = 5.0 x 10-9


Salt or hydrolysis reactions

Salt orHydrolysis Reactions


Hydrolysis

Hydrolysis

Any reaction in which water is decomposed with all or part of its decomposition portions combining with the products


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Hydrolysis

Water is added to decompose something


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Hydrolysis

MX + HOH

HX + MOH


Salts

Salts


Salts1

Salts

  • Ionic compounds that dissolve ~ 100 % in water


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salts of Acids

  • Salts of acids are negative

  • (A-)


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salts of Bases

  • Salts of bases are Positive

  • (M+ or B+)


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Solutions

  • When salts dissolve, their ions can recombine with water


Salt solutions

Salt Solutions

  • The salts of weak acids can recombine with water producing basic solutions


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Solutions

  • The salts of weak bases can recombine with water producing acidic solutions


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Solutions

  • A- + H2O HA + OH-

  • B+ + H2O H+ + BOH


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Drill: Calculate the salt/acid ratio of a solution of benzoic acid & sodium benzoate at a pH of 5.00.KaHBz = 6.4 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt or Hydrolysis Problems


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Problem

  • Calculate the pH of a 0.20 M solution of NaBz

  • Ka HBz = 6.4 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Drill: Calculate the pH of a solution of 0.10 M NH3 in 0.20 NH4Cl.Kb NH3 = 1.8 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt or Hydrolysis Problems


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Problem

  • Calculate the pH of a 0.20 M solution of KNO2

  • Ka HNO2 = 7.1 x 10-4


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Problem

  • Calculate the pH of a 0.10 M solution of R-NH3Cl

  • Kb R-NH2 = 2.5 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

  • Calculate the pH of a 0.18 M solution of KC2H3O2

  • Ka = 1.8 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Drill: Calculate the salt to acid ratio required to make a buffer solution with a pH of 4.495 using benzoic acid.KaHBz = 6.4 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Applications

  • Salts of strong acids & weak bases make acidic solutions


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Applications

  • Salts of strong bases & weak acids make basic solutions


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Salt Applications

  • Salts of strong acids & strong bases make neutral solutions


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Predict Relative pH

  • NaAcMnCl2

  • KNO3NH4Br

  • KHSO4NH4Ac


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Predict Relative pH

  • KAcNaCl

  • KClO2NH4Cl

  • K2SO4NaI


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Anhydrides

  • Compounds without water; that when added to water, form other compounds


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Acid Anhydrides

  • Non-metal oxides that form acids when added to water


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Basic Anhydrides

  • Metal oxides that form bases when added to water


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Predict Relative pH

  • Na2OSO2

  • NO2CO2

  • CaOAl2O3


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

  • Calculate the pH of a 0.16 M solution of KC7H5O2

  • Ka = 6.4 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

  • Calculate the pH of a solution of 0.0030 M KQ.

  • KaHQ = 3.0 x 10-5


Drill calculate the ph of a 0 72 m nh 4 no 3 solution k b nh3 1 8 x 10 5

Drill: Calculate the pH of a 0.72 M NH4NO3 solution.KbNH3 = 1.8 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Are there any questions on previous material?


A b eq buffer salt hydrolysis problem

A/B eq, Buffer & Salt Hydrolysis Problem


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate [H3PO4], [H2PO4-1], [HPO4-2], [PO4-3], [K+], [H+], & pH of 1.0 M KH2PO4 in 0.50 M K2HPO4. Ka1 = 7.5 x 10-3Ka2 = 6.2 x 10-8Ka3 = 4.2 x 10-13


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

You need to make a buffer solution with its greatest buffering capacity at pH ~ 5.4. In general terms, describe what acid or base you would chose, & how you would make the buffer.


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

11.2 g of KOH was added to 2.0 L of 0.075 M H2CO3. Calculate the molarity of all ions present in the solution.Ka1 = 4.4 x 10-7Ka2 = 4.8 x 10-11


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Drill: Calculate the pH of

0.10 M HF. Ka HF = 6.5 x 10-4


Test review

Test Review


Expect a straight acid base problem like the drill

Expect a straight acid/base problem like the drill


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate the pH of 0.10 M HF in 0.20 M KF. Ka HF = 6.5 x 10-4


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate the pH of 0.10 M KF. Ka HF = 6.5 x 10-4


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Predict Relative pH

K2OMgO

ClO2(NH4)2O

SO3N2O3


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Predict Relative pH

  • KAcNaCl

  • KClO2NH4Cl

  • K2SO4NaI


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate the pH of 5.0 M KCN. KaHCN= 5.0 x 10-10


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

0.20 M MOHin

0.50 M MCl

Kb = 5.0 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

0.20 M MCl

Kb = 5.0 x 10-5


Drill calculate the ph of 0 20 m kq k a hq 8 0 x 10 5

Drill: Calculate the pH of0.20 M KQ. KaHQ = 8.0 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 0.20 M HNO2

  • Ka = 2.0 x 10-4


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 3.0 M HZin

  • 2.0 M KZ

  • Ka HZ = 3.0 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 0.20 M KR

  • Ka HR = 2.0 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 2.0 M HQ

  • Ka = 2.0 x 10-6


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 0.60 M HZin

  • 0.90 M KZ

  • Ka HZ = 3.0 x 10-5


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate pH of:

  • 0.20 M KQ

  • Ka HQ = 2.0 x 10-7


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

1.5 L of 0.25 M Ba(OH)2 was added to 1.0 L of 0.60 M H2SO3. Calculate [H2SO3], [HSO3-], [SO3-2], [H+], [OH-], & pH of the solution.Ka1 = 1.7 x 10-2Ka2 = 6.0 x 10-8


Review of acid base descriptions and acid base buffer salt equilibria

Review of Acid/Base descriptions and Acid/Base, Buffer, & Salt Equilibria


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Arhenius, Bronsted-Lowry, & Lewis Acids & Bases


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Strong Acids

Strong Bases


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Acid rxns

Base rxns


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

A/B Equilibrium Constants

KW, KA, KB, & pH


Calculate ph of

Calculate pH of:

  • 0.025 M HNO3

  • 0.020 M KOH


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

150 mL of 0.10 M KOH was added to 100.0 mL of 0.10 M H2CO3. Calculate [H2CO3], [HCO3-], [CO3-2], [H+], [OH-], & pH of the solution.Ka1 = 4.4 x 10-7Ka2 = 4.7 x 10-11


Drill calculate the ph of 0 10 m h 2 z in 0 50 m khz k a1 2 0 x 10 5 k a2 5 0 x 10 9

Calculate [H3A], [H2A-1], [HA-2], [A-3], [K+], [H+],[OH-], & pH of 2.0 M KH2A. Ka1 = 4.0 x 10-3Ka2 = 5.0 x 10-8Ka3 = 2.5 x 10-13


The take home portion of the test is due by 8 15 tomorrow

The take-home portion of the test is due by 8:15 tomorrow


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