Monday, October 27, 2008

Midterm Review

Please post your top 3 topics you would like to go over. Don't worry about repeating topics others have posted. This simply gives me an idea of the topics the majority of the class needs assistance with. Also, I have posted 5 sets of worksheets on the www.schoolandteacher.com under projects (Fall Midterm). Please print these out and bring them to class tomorrow. All of the multiple choice midterm questions will come from these worksheets. Post any questions on the blog.

41 comments:

Anonymous said...

The 3 things i don't understand:

1.Enthalpy
2.Heat capacity and Specific Heat
3.Wavelenght

taimi jacobson said...

top 3

1. Equations with λ, ν or f, c, and E

2. Polarity

3. IMF

bcesparza said...

3 things i dont get:
- wavelength calculations
- limiting reagent problems
- isoelectronic species

Jake said...

1.equations with frequency, energy, wavelength, speed, and Planck's constant (h)
2.VSEPR
3.polarity

taimi jacobson said...

Three things I need help with (Katie McDonald)

1. calorimetry
2. thermodynamics
3. IMF

holly said...

Top 3:

1. Enthalpy
2. Polarity
3. Stoichiometry

eva loredo said...

Top 3:

1. Hess's Law-Manipulating Formulas (Enthalpy)

2. IMF's

3. Thermochemistry/Thermodynamics

Edward said...

top 3

1. drawing the 3-D structure

2. distinguishing the state a chemical structure is in during room temperature by looking at the chemical formula

3.LDFs

michellie said...

1. Wavelength
2. Stoichiometry
3. Limiting Reagent equations

Unknown said...

Top 3 things I'm clueless about:

1. VSEPR
2. IMF
3. Limiting Reagent problems.

Vegettta said...

Top 3 Topics:

1.Enthalpy
2.Experimental error/Theoretical yield.
3.Hess's Law

Christa said...

3 things:
1. Vapor Pressure
2. Molar heat of fusion/vap.
3. Calories -> joules

T Rich said...

1. Calorimetry
2. Stiocheometry with Enthalpy
3. Heat capacity products minus reactants
Calculate the change intemp for the reaction.

*Maedi* said...

Three Things i dont understand are
1.Enthalpy
2.Polarity
3.IMF

Jonathan Dovedy said...

The three things

Manipulation of equations
IMFs
Vapor Pressure

Mickey Kumar said...

1. IMF
2. 3-d structures
3. what state is it at, at room temperature form eq.

jasonfridlund said...

-calorimetry
-Stoichiometry w/ enthalpy
-wavelength equations

Anonymous said...

1. IMFs
2. polarity
3. Vapor pressure

Niran said...

The unhappy subject list:

1. Enthalpy/Hess' Law/and related
2. Bohr's Model
3. Δfus/Δvap (Thermodynamics)

Claire Willey said...

3 topics
1. Lewis dot structures
2. molecular shapes
3.Calculation of change in heat

Cutter said...

1. Wavelength Calculations

2. 3D structures

3. Δfus/Δvap

Cutter said...

Kind of a lot to print out is it now? Will it be fine if we print the first two pages out of each one or something just for tomorrow?

eva loredo said...
This comment has been removed by the author.
Annie Ransom said...

You can always shrink the font, put multiple pages on one paper and shrink the margins. This is to help you study for the midterm, if you don't want to use it, that's your call. I will be pulling from these questions for the midterm. If I were a student I would want them in my hand to work on in class with my teacher there to help me. But, this is your education so you can decide. I won't be checking if you have them for points.

Anonymous said...

1.stoichiometry
2.enthalpy
3.calorimetry

steph armstrong said...

1. change in state
2. vapor pressure
3. drawing 3d structures

=) thanks!

April G said...

1. Naming Compounds
2. Limiting Reagent
3. Polarity

Lauren Hofmann said...

Top Three
1.POLARITY
2. Difference between Dipole-Dipole, Hydrogen bonds and LDFs(Intermolecular forces)
3.Calorimetry

Nick Wilson said...

Ms Marostica,

Considering the standard heats of formation, how do you calculate the change in enthalpy for a reaction? (its number 38 on the worksheets)

Edward said...

ms marostica, are you going to give us chemical formulas on the midterm that require us to do triple bonds on the lewis dot structures?

Anonymous said...

Please tell me there's an error on #76 (bonding VESPR worksheet)

Annie Ransom said...

It's possible (triple bonds). The most common ones are N2, CO, and C2H2.

Annie Ransom said...

Yes, #76 should not have been on the worksheet. I chose the wrong one so don't worry about it. I apologize. Thanks for finding it and posting that on the blog.

Annie Ransom said...

Nick--use the equation [products - reactants]. check out the lecture slides and look for Hess' Law. There are two versions: the one where you manipulate the equations and the one that you are talking about. It's where you look up values in a table or, in this case, are given them in the problem.

Edward said...

ms marostica, could you explain numbers 40-42 on the " Bonding and VSEPR" worksheet? i dont see how those answers could make sense...

Edward said...

ms marostica, i figured out that the units for speed of light was m/s and that wavelength was nm but i cant seem to figure out frequency...is it something per second?

Anonymous said...
This comment has been removed by the author.
Annie Ransom said...

Hey guys, I don't have access to the wrkshts right now as I'm not at home. I don't know what those #s refer to. Units for freq are 1/s.

Edward said...

how come the worksheet says the highest energy orbital for a silicon atom is 3d when silicon has 14 electrons which makes its highest energy orbital 3p right?

Annie Ransom said...

3d is at a higher energy than 3p.

Whitney said...

mrs. marostica, how do you find the specific heat of NH4 if you're not given q?