Assuming equal concentrations, rank these solutions by pH. RbOH-NH3-HBrO-Sr(OH)2-HI

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Assuming equal concentrations, rank these solutions by pH. RbOH-NH3-HBrO-Sr(OH)2-HI

Assuming equal concentrations, rank these solutions by pH.

RbOH-NH3-HBrO-Sr(OH)2-HI

science chemistry

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Answer 1

Answer #1

HI < HBrO < NH₃ < RbOH < Sr(OH)₂

Out of all the compounds given, HI is the strongest acid. Since acids have less pH value, HI is the one with lowest pH value.

Now the bases Sr(OH)2 and RbOH which are both strong bases and so they get completely ionized. Since Sr(OH)2 produces twice as many OH- ions as RbOH has, Sr(OH)2 will have the highest [OH-] and so the highest pH. RbOH will have a pH just a bit lower than Sr(OH)2.

Then the compound left is NH3. This is a weak base and therefore it will have a higher pH than HBrOH, but significantly lower than RbOH.

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Answer 2

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Assuming equal concentrations, rank these solutions by pH. RbOH-NH3-HBrO-Sr(OH)2-HI

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