- #1
higherme
- 129
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Calculate the ionic strength of Ca2+ in a 0.01M CaCO3 solution.
equation to use is:
u=0.5 sum(Mi)(zi)^2
where M is the concentration and z is the charge of the species
my question is when I am calculating the ionic strength of Ca2+, do I have to include
CO3^2- that is in that solution?
so, it would be :
U=0.5 (0.01M Ca2+)(2+)^2 + (0.01M CO3^2-)(2-)^2
U=0.04M
if I don't include:
U=0.5 (0.01M Ca2+)(2+)^2
U=0.02M
equation to use is:
u=0.5 sum(Mi)(zi)^2
where M is the concentration and z is the charge of the species
my question is when I am calculating the ionic strength of Ca2+, do I have to include
CO3^2- that is in that solution?
so, it would be :
U=0.5 (0.01M Ca2+)(2+)^2 + (0.01M CO3^2-)(2-)^2
U=0.04M
if I don't include:
U=0.5 (0.01M Ca2+)(2+)^2
U=0.02M