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vodomira [7]
3 years ago
9

Assuming equal concentrations, arrange these solutions by pH.

Chemistry
1 answer:
LenKa [72]3 years ago
8 0

Answer:

Highest pH(most basic)

Sr(OH)2(aq)

KOH (aq)  

NH3(aq)

HF (aq)  

HClO4(aq)

Lowest pH(most acidic)

Explanation:

The concentration of H+ ion will determine the pH of a solution. The pH actually reflects the ratio of H+ ion and OH- since both of them can combine into water. Solution with more H+ ion will have a lower pH and called acidic, while more OH- will have high pH and be called basic. Strong acid/base will be ionized more than weak acid/base.

Sr(OH)2(aq) = strong base, release 2 OH- ion per mole

KOH (aq) = Strong base, release 1 OH- per mole

NH3(aq) = weak base, release less than 1 OH- per mole

HF (aq) =strong acid, release 1 H+ per mole

HClO4(aq) = stronger acid, release 1 H+ per mole

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When an excited electron spontaneously emits a photon, which energy transformation takes place
notka56 [123]

Given what we know, we can confirm that when an excited electron spontaneously emits a photon, the energy released is electromagnetic energy.

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Balance equation P2O5 + H20 - - - - &gt; H3PO4<br> Help me.....
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3 years ago
A 3.20-mol sample of gas occupies a volume of 350. mL at 300.0 K. Determine the
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Answer:

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Explanation:

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