April 12, 2010

Electrical conductivity in solutions requires charged ions to be transferred.
Ionic solutions dissociate, or form ions so they always conduct
NaCl(s)- Na(aq) + Cl(aq)
Molecular substances do not (usually) dissociate.
C12 H22 O11 h2o- C12 H22 O11 (aq)
BaCl2 (s) h2oBa(aq)+2 +2Cl- (aq)
CH3COOHCH3COO- +H+
96% 4%

Follow the chart to determine conductivity
Is it a metal if yes it is conductive

Homework:

1) Al (s)
2) H2so4(aq)
3) I2(s)
4) Br2(1)
5) Mg(OH)2(aq)
6) CH4(g)
7) PCL3(1)
8) ZnBr2(s)
9) NH3(aq)
10) Cr(NO3)2
11) H2O2
12) Cu3(PO4)2