Problem: Assuming equal concentrations, rank these solutions by pH from highest pH to lowest pH. Sr(OH)2(aq)NaOH(aq)NH3(aq)HBrO(aq)HI(aq)

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We're being asked to rank the solutions by pH from highest pH to lowest pH. 

highest pH → most basic

lowest pH → most acidic


Sr(OH)2(aq) → Group 2A ion (Sr-) paired with OH- → strong base (but with 2 OH- per 1 unit) → higher pH than NaOH

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Problem Details

Assuming equal concentrations, rank these solutions by pH from highest pH to lowest pH. 

Sr(OH)2(aq)

NaOH(aq)

NH3(aq)

HBrO(aq)

HI(aq)

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