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Equilibrium

Question
CBSEENCH11006588
Wired Faculty App

Calculate the pH of 0.1M solution of sodium acetate (pKa = 4·74).

Solution
Since sodium acetate is a salt of weak acid and strong base,
therefore space space space pH space equals space minus 1 half open square brackets log space straight K subscript straight w space plus space log space straight K subscript straight a space minus space log space straight c close square brackets space space space space space space space space space space equals space 1 half open square brackets negative log space straight K subscript straight w space minus space log space straight K subscript straight a space plus space log space straight c close square brackets space space space space space space space space space space equals space 1 half left square bracket pK subscript straight w space plus space pK subscript straight a space plus space log space straight c right square bracket space space space space space space space space space space space equals 1 half open square brackets negative log space left parenthesis 10 to the power of negative 14 end exponent right parenthesis space plus space 4.74 space plus space log space 0.01 close square brackets space space space space space space space space space space space equals 1 half left square bracket 14 plus 4.74 plus log space 10 to the power of negative 2 end exponent right square bracket space space space space space space space space space space space space equals space 0.5 open square brackets 14 space plus space 4.74 space minus space 2 close square brackets space space space space space space space space space space space space equals space 0.5 space cross times 16.74 space equals space 8.37 space space space space space space space space space space space space space space space space space space space space space space space space space

Some More Questions From Equilibrium Chapter

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

What is the role of forward and backward reactions at equilibrium of a reversible reaction?

What is a forward reaction?

What condition favours a reversible reaction?

What is a backward reaction?

What type of equilibrium is attained in a reversibe chemical change?

What is meant by a system at dynamic equilibrium?

discuss the effect of a catalyst on equilibrium ? 

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