Test 1

[Dustin Shin 2I]

For the first test, are there things we should know going into the test that is not given to us? This can range from different formulas to conversions or anything else.

[Ava Kjos 1D]

Pretty much all of the formulas and conversions are given. You should know the following relationships:

pOH + pH = pKw
[OH][H30] = Kw
(Ka)(Kb) = Kw
pKa + pKb = pKw
PV = nRT

If you know these then you should be good.

[Charles Gu 1D]

The quadratic formula will also be given.

[Douglas Nguyen 2J]

You can consult the Constants and Equations sheet on Dr. Lavelle's website too! It's pretty handy to use while you do your homework so that you're used to it when taking tests:

https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf

[MadisonB]

They usually provide all the equations you need to know. I find it best to look at it before the test so you are familiar where everything is.

[Mya Majewski 1L]

to correct the equation above pOH +pH=14 NOT pkw

[Andre_Galenchik_2L]

If pOH and pH always add up to 14, is it possible to have a negative pH? What about a pH higher than 14?

[Aili Ye 4L]

pKw at 25 degrees IS 14.

[Elle_Mendelson_2K]

While it is possible to have a negative pH or a pH that is above 14, for the purpose of this class, we are only considering phs of 0-14.
Hope this helps.

[Lopez_Melissa-Dis4E]

You should assume that most equations will be given on the constant/equation sheet.