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Phosphoric acid is a triprotic acid ( =6.9ร10โ3 , =6.2ร10โ8 , and =4.8ร10โ13 ). to find the ph of a buffer composed of h2poโ4(aq) and hpo2โ4(aq) , which p value should be used in the hendersonโhasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
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Which pair of molecular formula and empirical formula is CORRECT? (empirical formula have the smalle...
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