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Determine the equilibrium constant for t...

Determine the equilibrium constant for the reaction :
`HF(aq)+NH_3(aq)toNH_4^(+)(aq)+F^(-)(aq) K_a=6.9xx10^(-4)`
`NH_3(aq)+H_2O(l)toNH_4^(+)(aq)+OH^(-)(aq) K_b=1.8xx10^(-5)`
`2H_2O(l)toH_3O^(+)(aq)+OH^(-)(aq) K_w=1.0xx10^(-14)`

A

`1.2xx10^(-8)`

B

`1.2xx10^(6)`

C

`8.1xx10^(7)`

D

`3.8xx10^(15)`

Text Solution

Verified by Experts

The correct Answer is:
b
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GRB PUBLICATION-IONIC EQUILIBRIUM-All Questions
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  2. The following equilibrium is established when hydrogen chloride is dis...

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  3. In the following reaction HC2O4^(-) (aq)+PO4^(3-) (aq) hArr HPO4^(2-)...

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  4. According to Bronsted Lowry concept, in given reaction, water will beh...

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  5. Species acting as both Bronsted acid and base is:

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  6. The conjugate base of H2PO4^(-) is :

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  7. The conjugate base of OH^(-) is :

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  8. Three reactions involving H2PO4^- are given below : (P)H3PO4+H2O to ...

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  15. Weak acid include which of the following ? (P)HF(aq) , (Q)HI(aq) , (...

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  16. Which is not a conjugate acid/base pair ?

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  17. What is the conjugate base of HSO4^- ?

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  20. What is the conjugate acid of HPO4^(2-)?

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  21. Species acting as both Bronsted acid and base is:

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