1811 calculate the phenolphthalein and total alkalinities of the follo
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18.11 Calculate the phenolphthalein and total alkalinities of the following samples: (a) A 50-mL sample required 5.3 mL 0.020 N H-SO, to reach the phenolphthalein end point and a total
of 15.2 mL to reach the methyl orange end point. (h) A 100-mL sample required 20.2 mL of 0.020 N H,SO, to reach the phenolphthalein end point and a total of 25.6 mL to reach the methyl orange end point.