快问快答

门捷列夫

1

State a example of amphiprotic species

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2

Same concentration

Acid X  pH=1

Acid Y  pH=5

Acid Z  pH=3

Deduce the order of [OH–] of the acids.

Y>Z>X

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3

Ka × Kb =?

[H⁺] × [OH^–] = Kw

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4

Same concentration

Acid HX  pH=1

Acid HY  pH=5

Acid HZ  pH=3

Deduce the order of pKb of the acids’ conjugate base.

X–>Z–>Y–

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1

pH + pOH =?

pKw

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2

Define the term Bronsted-Lowry base

Proton acceptor

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3

State two weak acids.

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4

10^–pH × 10^–pOH=?

Kw

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1

Same concentration

Acid X  pH=1

Acid Y  pH=3

Acid Z  pH=5

Deduce the order of electrical conductivity of the acids.

X>Y>Z

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2

Same concentration

Acid HX  pH=1

Acid HY  pH=5

Acid HZ  pH=3

Deduce the order of Ka of the acids.

HX>HZ>HY

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3

pKa + pKb =?

 pKw

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4

Same concentration

Acid HX  pH=1

Acid HY  pH=5

Acid HZ  pH=3

Deduce the order of Kb of the acids’ conjugate base.

Y–>Z–>X–

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白白

1

Define the term Bronsted-Lowry acid

Proton donor

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2

Same concentration

Acid HX  pH=1

Acid HY  pH=5

Acid HZ  pH=3

Deduce the order of pKa of the acids.

HY>HZ>HX

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3

T↑ Kw（   ）   (increase or decrese)

increase 

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4

State the reaction product of acid and metal carbonate.

Salt  CO2  H2O

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