Asked by paula

If the standard calcium carbonate solution is 100 ppm and 25 mL of solution is used for the standardization, calculate the approximate volume of 2mM EDTA solution needed to reach the end point of the titration.

I know to use M1V1=M2V2 but need help converting units of concentration from ppm to molar.
Answered by DrBob222
If it is 100 ppm that is 100 part is 1E6 parts or 1 part in 1E4 parts (see what I did?) or 0.1 in 1000 or 0.01 in 100 so how many would that be in 25?
Answered by paula
0.0025?
Answered by DrBob222
right
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