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What is the hydronium ion concentration ...

What is the hydronium ion concentration of a `0.25` M HA solution? `(K_(a)=4xx10^(-8))`

A

`10^(-4)`

B

`10^(-5)`

C

`10^(-7)`

D

`10^(-10)`

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NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Exercise
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  2. Given : Enthalpy of ioinization of two acids : triangleH^(@)(HCN)=45...

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  3. What is the hydronium ion concentration of a 0.25 M HA solution? (K(a)...

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  4. What is the precent dissociation (alpha) of a 0.01 M HA solution? (K(a...

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  5. Given the two concentration of HCN (K(a)=10^(-9)) are 0.1 M and 0.001 ...

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  6. A 0.10 M solution of HF is 8.0% dissocaited What is the K(a)?

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  7. A weak base MOH of 0.1N concentration shows a pH value of 9 . What is ...

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  8. 0.01 M HA (aq.) is 2% dissociated, [OH^(-)] of solution is :

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  9. If degree of dissociation is 0.01 of decimolar solution of weak acid H...

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  10. What concentration of HCOO^(-) is present in a solution of weak of 0.0...

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  11. Chose the correct code {:(,"Column"-I , "Column"-II,), ((P), pK(b) "...

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  12. How much water must be added to 300 mL of a 0.2M solution of CH(3)COOH...

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  13. What is [NH(4)^(+)] in a solution that contain 0.02 M NH(3)(K(b)=1.8xx...

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  14. A hand book states that the solubility of RNH(2) (g) in water at 1 atm...

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  15. The [H^(+)] of a resulting solution that is 0.01 M acetic acid (K(a)=1...

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  16. 6.0 g weak acid HA (mol.mass=60 g/mol.) is dissolved in water and form...

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  17. Carbonic acid (H(2)CO(3)), a diprotic acid has K(a1)=4.0xx10^(-7) and ...

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  18. Carbonic acid (H(2)CO(3)), a diprotic acid has K(a1)=4.0xx10^(-7) and ...

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  19. Selenious acid (H(2)SeO(3)), a diprotic acid has K(a1)=3.0xx10^(-3) an...

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  20. Which of the hydrated species may exist? I : H(5)O(2)^(+) , II : H(3...

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