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Titration to the primary colorless phenolphthalein endpoint neutralizes the surplus sodium hydroxide and converts most of the sodium carbonate into sodium bicarbonate. Methyl orange indicator is included plus the titration is ongoing to the next endpoint (exactly where methyl orange adjustments colour) as being the acid converts the sodium bicarbonate http://electrician30594.bloginwi.com/11384667/a-secret-weapon-for-decking-stanthorpe


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