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The addition of NaH(2)PO(4) to 0.1M H(3)...

The addition of `NaH_(2)PO_(4)` to `0.1M H_(3)PO_(4)` will cuase

A

No change in `pH` value

B

Increases in its `pH` value

C

Decrease in its `pH` value

D

Change in `pH` but cannot be predicted

Text Solution

Verified by Experts

The correct Answer is:
B
On adding salt of `W_(A)//S_(B) (NaH_(2)PO_(4))` to `0.1M H_(3)PO_(4)`, an acidic buffer is formed so `pH` increases.
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CENGAGE CHEMISTRY-IONIC EQUILIBRIUM-Ex 8.3
  1. Which of the following solutions containing weak acid and salt of its ...

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  2. A weak acid HA has K(a) = 10^(-6). What would be the molar ratio of th...

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  3. The addition of NaH(2)PO(4) to 0.1M H(3)PO(4) will cuase

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  4. On diluting a buffer solution, its pH

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  5. The pH of a solution containing 0.1mol of CH(3)COOH, 0.2 mol of CH(3)C...

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  6. A weak base BOH is titrated with strong acid HA. When 10mL of HA is ad...

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  7. To 1.0L solution containing 0.1mol each of NH(3) and NH(4)C1,0.05mol N...

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  8. The pH of blood is 7,4. If the buffer in blood constitute CO(2) and HC...

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  9. The pH of blood is

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  10. Buffer in blood consists of

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  11. K(a) for HCN is 5 xx 10^^(-10) at 25^(@)C. For maintaining a constant ...

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  12. 18mL of mixture of CH(3)COOH and CH(3)COONa required 6mL of 0.1M NaOH ...

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  13. The pH of blood is maintained by the balance between H(2)CO(3) and NaH...

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  14. Fixed volume of 0.1M benzoic acid (pK(a) = 4.2) solution is added into...

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  15. 0.1mol of RNH(2)(K(b) = 5 xx 10^(-5)) is mixed with 0.08mol of HC1 and...

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  16. A weak acid HX(K(a) = 10^(-5)) on reaction with NaOH gives NaX. For 0....

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  17. The pH of 0.1M solution of the following salts decreases in the order

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  18. The degree of hydrolysis of a salt of W(A) and W(B) in its 0.1M soluti...

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  19. pH of separate solution of four potassium salts, KW,KX, KY and KZ are ...

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  20. Which of the following solutions have pH lt 7.

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