Answer to Question #273126 in Physical Chemistry for ROCKY

Question

200 ML of a sample water required 20 ML of N/50 HCl using methyl orange indicator.

Another 200 ML of the same water sample required 8 ML of N/50 HCl using

phenolphthalein as indicator. Express the alkalinities in terms of mg of CaCO 3

Answer 1

Because alkalinity is a measure of multiple species in solution. If it's going to be expressed as a single numerical quantity in mg/L.