Today in Chemistry
You will Need:
1)Pencil
2)Acids and Bases Part 2 (Picked
up Yesterday)
3)Acids and Bases Part 1 (Picked
up last week)
4)Colored Pencils (as needed)
5)Textbook open to Periodic Table
Chemistry Final Exam
For those of you who wish to
plan ahead:
1) Final exam is 2 days
2) Cumulative knowledge for the
whole semester
3) ½ page of notes, front side only,
done by hand
4) Dates: June 2nd and 3rd
5) A periodic table and Lewis Dot
Config will be provided for the
test.
Review
1)The amount of space a substance
takes up is its?
2)In a chemical equation, the
________ are found on the right
side.
3)Why do two different size pieces of a
substances have the same densities?
4)What does the atomic mass tell you
about the atomic structure?
5)Which scientist is responsible
creating the “Solar System” style
model of the atom?
6)What are the two liquids on the P.T.?
Review
7) What scientist believed the atom was
a random assortment of particles?
8)What was one problem with Dalton’s
atomic theory?
9)How many more bonds does Fluorine
need to complete its outer shell? Why?
10)How many shells does Sodium’s Bohr
model contain? What is its electron
configuration?
11)What type of bond is NaOH? Why?
12)What type of bond is ZnCl2? Why?
Review
13)How many atoms of Oxygen are
needed for 2 Pb(NO3)2?
14)What slows down or stops a chemical
reaction?
15)What type of ions are more present
in a acid?
16)What is one characteristic acids have
that bases do not share?
17)What colors are associated with
bases?
18)What # represents the weakest
Base? Acid?
A
positively
or
negatively
ION:
charged atom/molecule
Measures the # of H+ ions in a
pH
Scale:solution (Potential Hydrogen Ions)
ACID
0-6.9
7
NEUTRAL
BASE
7.1-14
H+ equals what kind of
substance?
Acid – Hydronium Ions
OH- equals what kind of
substance
Base – Hydroxide Ions
Charac. Of Acids
Uses of Acids
Charac. Of Bases
Uses of Bases
Both
Acids
Bases
pH
Questions # 7, 8 and 9
#7 found in textbook pg. 294
#8 Hyperlinks on class webpage
#9 Hopefully from your Cornell
Notes on acids and bases and
your experience with the labs
you should be able to answer –
OTHERWISE – Hyperlinks on
class webpage to help you.
9.Suppose you have already compared the pH
values of two substance using 0-14 pH paper.
When would a follow-up test using 4.5-7.5 paper
be most helpful?
A.When both sub. had a pH value of about 3 on the
0-14 paper
B.When both sub. had a pH value of about 6 on the
0-14 paper
C.When both sub. had a pH value of about 9 on the
0-14 paper
D.When on substance had a pH value of about 5
and the other had a pH value about 7 on the 014 paper.
1. Work on Acids and
Bases Part 1 & Part 2
13- 25 – Review questions – Circle
one answer for each
#22 – has two answers
#25 (NH4)2SO4
#24 “C” is listed twice – 2nd one
should be a “D”
1. Acids & Bases – Part 1 & 2
2. Anything you still owe