Solid calcium hydroxide, Ca(OH)2, is dissolved in water until the pH of the solution is 10.23. What is the concentration of calcium ion [Ca2+]?
1
Expert's answer
2013-03-01T06:55:55-0500
pH is a measure of the activity of the (solvated) hydrogen ion.pOH is sometimes used as a measure of the concentration of hydroxide ions, OH−, or alkalinity. pOH values are derived from pH measurement.At room temperature pOH ≈ 14 − pH.
pH=14-pOH pOH=14-pH
pOH=14-10,23=3,77
pOH=-lg[OH-]
[OH]=10^-3,77
The net ionic equation for this process is:
Ca(OH)2 <=> Ca2+ 2 OH-
From this equation you can see that concentration of [OH-] is equal to 2*[Ca2+]
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment