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assuming equal concentrations, arrange these solutions by pH. Highest pH Lowest pH Answer Bank KNO,(aq) HI(aq) CH,NH, Br(aq)
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Answer #1

KNO3 is salt made by strong acid and strong base. Therefore, they will not change the pH of the solution.

HI is strong acid and dissociate to H+ and I-

CH3NH3Br is salt made by strong acid (HBr) and weak base (CH3NH2). Therefore, they dissolve in solution and behave like weak acid.

LiOH is strong base and dissociate into Li+ and OH-.

K2CO3 is salt made by the weak acid (H2CO3) and strong base (KOH). Therefore, they dissolve on solution and begave like weak base.

So, the order will be ( from highet to lowest pH)

HI > CH3NH3Br > KNO3 > K2CO3 > LiOH

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