他第2題的問題上課有教...但我卻似懂非懂!!!
Vp Vmo 我忘了各是啥意思 !!
2. A sample of water has a pH of 9.0. 200 mL of the water require 1.1 mL
of 0.02 N H2SO4 to titrate it to the phenolphthalein endpoint and 22.9 mL
of 0.02 N H2SO4 to titrate it further to the methyl orange endpoint.
We can now determine the major alkalinity species from the titration values,
VP = 1.1 mL and Vmo = 22.9 mL
(a) Since Vmo > Vp, the major species present are _________________
(b) What are the total alkalinities of the sample in meq/liter and in mg/L as
CaCO3?
希望有人提供寶貴的見解 由衷感謝!!
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