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Chemistry
Lab #7 - “Names and Formulas of Ionic Compounds”
De Stigter
Name_________________
Period ________________
Lab Partner ____________
Names and Formulas of Ionic Compounds
Safety: All students must wear safety goggles and follow all lab safety rules.
Purpose: Individually, you will observe the formation of new ionic compounds and then write the
chemical formula and determine its chemical name.
Procedure:
1. Use the following table below to record all qualitative observations. Label each precipitate
that forms as milky, grainy, cloudy, or gelatinous. Be very complete with your descriptions
including color and other detailed observations.
2. Remember to use a labeling method to keep track of each mixture you have made. Add
approximately 2 to 3 ml of each solution into a test tube. If the pipette is empty fill it by
adding the correct chemical. The bottles are directly behind the bowl
3. Chemicals to watch out for…
-silver nitrate = skin irritant, stains dark and black
-sodium hydroxide = basic solution, causes mild burns
4. All solutions can be flushed down the drain with an excess of water. Use a lot of water with
silver and lead compounds.
Lab #7 – Table
AgNO3
(Ag+)
Pb(NO3)2
(Pb2+)
CaCl2
(Ca2+)
FeCl3
(Fe3+)
MgSO4
(Mg2+)
CuSO4
(Cu2+)
1
5
9
13
17
21
2
6
10
14
18
22
3
7
11
15
19
23
4
8
12
16
20
24
Na2CO3
(CO32-)
Na3PO4
(PO43-)
NaOH
(OH-)
Na2SO4
SO42-)
Lab Report:
1. Which mixtures in Lab #7 did not react with each other? How do you know?
2. Make a list of all the cations used in Lab #7. Also include their charges.
3. Make a list of all the polyatomic anions used in lab #7. Also include their charges.
4. For boxes 1 -24, write the balanced chemical formulas for each active metal (top) reacting
with a sodium (side) ionic compound. (ex. cation + anion  new ionic compound)
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5. For boxes 1 – 24, write the common chemical names for all new ionic compounds listed in
question #5. Make sure to include the “common” name if a transition metal is used.
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