A solution of Ca(OH)2 has a measured pH of 9.60. What is the molar concentration of the Ca(OH)2 in the solution?
2007-04-24 10:41:04 · 2 answers · asked by wonderer 1 in Science & Mathematics ➔ Chemistry
Lancenigo di Villorba (TV), Italy
An aqueous solution of Ca(OH)2 results a Chemical Stuff related to a STRONG BASE.
In this fashion, Hydroxide Ion's Concentration results related to Chemical's One
|OH-| = |Ca(OH)2| * 2
CALCULATIONs
The pH's level was assigned, hence I determine the Hydrogen Ion's Concentration
|H+| = ALOG(0 - pH) = 0 - LOG(0 - 9.60) = 2.5E-10 M
|OH-| = Kw / |H+| = 1.0E-14 / 2.5E-10 = 4.0E-5 M
|Ca(OH)2| = |OH-| / 2 = 4.0E-5 / 2 = 2.0E-5 M
I hope this could be clear.
2007-04-24 11:12:01 · answer #1 · answered by Zor Prime 7 · 0⤊ 0⤋
1. work out 10 to the power of -9.6
2. halve it.
2007-04-24 18:05:55 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋