Name:_________
Period:_________
CHEMICAL BONDING: Ionic and covalent bonding
∑ View the animation of the sugar dissolving in water.
http://www.dlt.ncssm.edu/TIGER/Flash/moles/Dissolving_Sugar_Non-Electrolyte.html
∑ View the animation of the NaCl dissolving in water.
http://www.dlt.ncssm.edu/TIGER/Flash/moles/Dissolving_NaCl-Electrolyte.html
Complete the illustrations as you view the electrolyte animations:
http://ithacasciencezone.com/chemzone/lessons/07acidbase/electrolyte.htm
O.1 M C2H5OH
_________________
_________________
∑
0.1 M HC2H3O2
0.1 M NaCl
__________________
___________________
__________________
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In the 1sr blank below each container above, label each solution above as a strong, weak or nonelectrolyte.
∑
In the 2nd blank list the ions and their charges or just the molecule if no ions form.
How to decide if a compound is a non-electrolyte, weak electrolyte, or strong electrolyte.
Strong electrolytes
∑ Strong acids – HCl, HBr, HI, H2SO4, HNO3, HClO4, HClO3
∑
Strong bases – Group IA hydroxides, Ca(OH)2, Sr(OH)2, Ba(OH)2
∑
Soluble ionic compounds
Weak electrolytes
∑ weak acids
∑ weak bases: any base not listed above
Non-electrolytes
∑ molecular compounds– bonding is covalent
∑ Insoluble ionic compounds
Ionic and covalent bonding
Procedure: Virtual Lab; Go to the site www.conductivitylab.com
Follow the instructions and determine if the light shines brightly or weakly for the following compounds.
i. C12H22O11
ii. AgCl
iii. AlBr3
iv. CH3(CH2) 3 CH3
v. CaCl2
vi. CH3 OH
vii. C12H22O11
viii. KOH
ix. HAc
Complete the Data Table:
NAME
FORMULA
1
C12H22O11
2
AgCl
3
AlBr3
4
5
CH3(CH2) 3
CH3
CaCl2
6
CH3 OH
7
C12H22O11
8
KOH
9
HAc
LIGHT
Ionic or
SHINES
Covalent
(YES bright
or weakly or
NO)
Electrolyte (weak or
strong) or Nonelectrolyte