I worked this problem for Allan below.
http://www.jiskha.com/display.cgi?id=1317528123
What must be the molarity of an aqueous solution of trimethylamine, (CH3)3N, if it has a pH = 11.20?
(CH3)3N(aq)+H2O(l) double arrow (CH3)3NH+(aq)+OH-(aq)
Kb value = 6.3x10^-5 mol/L
2 answers
Find the inverse of the matrices, if they exist. Use the algorithm introduced in this section.
1 2 -1
-4 -7 3
-2 -6 4
1 2 -1
-4 -7 3
-2 -6 4