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pH of 0.05 aqueous solution of weak acid...

pH of 0.05 aqueous solution of weak acid HA`(K_a=4×10^(-4))` is

A

4.7

B

2.35

C

3.39

D

1.3

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AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE
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  10. If DeltaH°c of solid benzoic acid at 27°C is -x(kcal/mol) , then Delta...

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  11. The pH of the solution obtained by mixing 250ml,0.2 M CH3COOH and 200 ...

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  12. Which of the following statement is incorrect?

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  18. The correct increasing order of van der Waals constant 'a' for the fol...

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  19. Which of the following statements is incorrect?

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  20. The number of moles of Hydrogen cyanide in 243 g is

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