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Vocaloid:
calculate the polarity index of a solution that is 55% 50 mM ammonium dihydrogen phosphate in water and 45% 25 mM tetrabutylammonium bromide (ion pairing agent) in acetonitrile
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Vocaloid:
I know the general formula but not sure how to account for the different concentrations of active compound in each component
Vocaloid:
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