In a two-vessel technique titration set-up, what is the unknown substance if the volume of phenolphthalein endpoint is greater than half of the volume of bromocresol green endpoint? A.a mixture of sodium hydroxide and sodium carbonate B.a mixture of sodium hydroxide and sodium carbonate C. a mixture of sodium hydroxide and sodium bicarbonate D. sodium carbonate only
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In a two-vessel technique titration set-up, what is the unknown substance if the volume of phenolphthalein endpoint is greater than half of the volume of bromocresol green endpoint?
A.a mixture of sodium hydroxide and sodium carbonate
B.a mixture of sodium hydroxide and sodium carbonate
C. a mixture of sodium hydroxide and sodium bicarbonate
D. sodium carbonate only
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