Quiz 7 material

[robert zellmer]

Quiz 7: *Ch 17 (17.6-17.7), Chapter 5 (review) and Ch 19 (19.1-19.7)**
*
*Sections 17.6-17.7:**
*
Precipitation and separation of ions.  Section 17.7 is just for
your information about separation of ions.  There will be no
specific questions from 17.7.  However, reading through this
section may help you understand precipitation reactions and
what types of compounds are usually insoluble and to what degree.
There are a couple of homework problems to aid in this.

Also, there is a Sample Integrative Exercise in this section you
should be able to do.

On the quiz, if you need to use an ICE table, you must show the work
and the ICE table.  When making any assumptions you should show that
your assumptions are okay (less than 5% error).  If the percent error
is greater than 5%, you need to solve the resulting quadratic equation
or use the method of successive approximations (both shown in class
and in the notes).  You must show this work.  If you don't, you will
not get full credit.

*Homework coverage (you should be able to all problems in the given 
ranges):**
*
For those of you using the 14th edition the quiz covers sections 17.6-17.7
You should be able to do homework problems 17.10, 17.12, 17.69-17.76,
17.77, 17.80, 17.104-17.105

For those of you using the 13th edition the quiz covers sections 17.6-17.7
You should be able to do homework problems 17.10, 17.12, 17.69-17.76,
17.77, 17.80, 17.104-17.105

For those of you using the 12th edition the quiz covers sections 17.6-17.7
You should be able to do homework problems 17.10, 17.12, 17.67-17.74,
17.75, 17.78, 17.102-17.103

For those of you using the 11th edition the quiz covers sections 17.6-17.7
You should be able to do homework problems 17.63-17.68, 17.69, 17.72,
17.87-17.98

For those of you using the 10th edition the quiz covers sections 17.6-17.7
You should be able to do homework problems 17.61-17.66, 17.67, 17.70,
17.91-17.92

*For the on-line homework:**
*
Do Ch 17 problems 16-20


Chapter 5:

Understand first law of thermodynamics (conservation of energy and
E=q+w from ch 5), state functions, Hess's Law, Enthalpy of
Formation and how to use these to obtain enthalpies of reaction.

See my chapter 19 notes (pages 1-17 to get an idea of what sorts of
things you need to review from chapter 5).


Sections 19.1-19.4:

The 2nd and 3rd laws which deal with entropy.  Understand the diff.
between reversible and irreversible processes.  Should be able to
calc. entropy changes for both system and surroundings for reversible
(equilibrium) and irreversible processes.  Understand the molecular
interpretation of entropy and microstates as well as Boltzmann's eqn
(eqn 19.5).  Be able to make qualitative predictions about changes
in entropy.  Be able to calc. entropy changes using standard
entropies (eqn 19.8).

Sections 19.5-19.7:

Understand free energy and how it relates to enthalpy, entropy, temp.
and spontaneity.  Know how to use std. free energies of formation to
calc. std. free energy changes for a rxn (eqn 19.14).  Also, understand
how free energy under nonstandard conditions relates to standard free energy
and reaction quotient (19.19 in 12th ed., 19.16 in the 11th ed. and
19.21 in the 10th ed.).  Understand the relationship between std.
free energy and the equilibrium constant (section 19.7).

Understand what the free energy change under nonstandard conditions (deltaG)
means and what the free energy change under standard conditions (deltaG^o)
means (i.e. deltaG tells you whether a rxn is spont or nonspont under any
conditions and related to the slope of the free-energy curve under any
conditions and deltaG^o tells you about the diff. in free energy between
the products and reactants and tells you where the position of the minimum
in the free-energy curve is, where the position of equilibrium lies) - see
section 19.5 and the last few pages in the notes.

*Homework coverage (you should be able to all problems in the given 
ranges):**
*
For those of you using the 14th edition the quiz covers sections 19.1-19.7
You should be able to do homework problems 19.1-19.112

For those of you using the 13th edition the quiz covers sections 19.1-19.7
You should be able to do homework problems 19.1-19.116

For those of you using the 12th edition the quiz covers sections 19.1-19.7
You should be able to do homework problems 19.1-19.115

For those of you using the 11th edition the quiz covers sections 19.1-19.7
You should be able to do homework problems 19.1-19.108

For those of you using the 10th edition the quiz covers sections 19.1-19.7
You should be able to do homework problems 19.1-19.106

*For the on-line homework:**
*
Do Ch 19 problems 1-25


Dr. Zellmer

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