Standard Analytical Procedures for Water Analysis

boil gently for 3 to 5 min under a watch glass cover. Cool to room temperature, rinse cover glass into beaker and finish titration to pH 4.3. Calculate normality of sulphuric acid: 53.00 C A B Normality,N × × = where: A= g aN 2CO 3 weighed into the 1L-flask for the Na 2CO 3 standard (see a.) a N L B=m 2CO 3 solution taken for standardisation ... ................
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