CHM 152 Acids/Bases

ICE tables..?

100

Consider the following rxn:

CO + 2 H2 <--> CH3OH

A reaction mixture at 1500 degrees Celsius initially contains [CO]= 0.98 M and [H2]=1.43 M. At equilibrium, the [CO] is .88 M. What is the value of Kc?

Kc=.075

200

Given the rxn: CH4 <--> C2H + 2 CH3

The equilibrium concentrations are as follows:

CH4= 3.52 M

C2H= 4.5 M

CH3= 3.44 M

What is the Kc?

Kc=15.12

300

The Kc for a reaction is 23.5. What would happen to the Kc value if the reaction is flipped and is multiplied by 3?

Kc=7.7x10^-5

400

Given the reaction:

7 CH4 <--> 18 O2 

and the concentrations at initial:

CH4= 0.2M

O2= 0.2M

What's the Q value?

2.05 x10 ^-8

500

Consider the following reaction: S₂O₂ <--> 2SO₂

Kc= 23.6

A rxn mixture initially contains [SO₂]=13.1

Find the equilibrium concentrations of each product and reactant 

[S2O2]=4.12

[SO2]=4.86

What is the CA or CB?

100

HCl

LiOH

HF

Cl-

LiOH2+

F-

200

NH3

HI

HBr

NH4+

I-

Br-

300

Ba(OH)2

CH3NH2

HCN

HBa(OH)2+

CH3NH3+

CN-

400

HOH

H3O+

OH-

H+ or OH-

500

CH3CH2COOH

H2SO4

F-

CH3CH2COO-

HSO4-

HF

Make the rxn with H2O

100

HBr

HBr+H2O <--> Br- + H3O+

200

LiOH

LiOH + H2O <--> LiOH2+ + OH-

300

H2SO4

H2SO4 + H2O  <--> HSO4- + H3O+

400

H3O+

H3O+ + H2O <--> H3O+ + H2O

500

CH3CH2CH2CH2CH2CH2COOH

CH3CH2CH2CH2CH2CH2COOH + H2O  <-->  H3O+ + CH3CH2CH2CH2CH2CH2COO-

Left or right?

100

Heat+ Br2  <--> 2 Br-

Increase Br2

Remove Br-

Right

Right

200

Heat+ Br_2(g) <--> 2 Br^-_(g)

Remove Br2

Increase Br-

Left

Left

300

Heat+ Br_2(g) <--> 2 Br^-_(g)

Increase temperature

Decrease Heat

Right

Left

400

Heat+ Br_2(g) <--> 2 Br^-_(g)

Increasing Pressure

Increasing Volume

Left

Right

500

Heat+ Br2  <--> 2 Br-

Adding Krypton

Adding H+

Nothing

Right

SA, SB, WA, or WB?

100

HCl

LiOH

SA

SB

200

HI

KOH

NH3

SA

SB

WB

300

HF

CsOH

Ca(OH)2

WA

SB

WB

400

Cl-

H2O

WB

WA or WB

500

HClO4

H2SO4

Ba(OH)2

CH3COOH

SA

SA

SB

WA