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Equilibrium

Question
CBSEENCH11006538
Wired Faculty App

Assuming complete dissociation, calculate the pH of the following solution:
0·002M HBr

Solution

0·002M HBr
Since HBr is completely dissociated,
therefore space space space open square brackets straight H to the power of plus close square brackets space equals space 0.002 space straight M space equals space 2 space cross times space 10 to the power of negative 3 end exponent straight M space space space space space space pH space equals space minus log space open square brackets straight H to the power of plus close square brackets space equals space minus log space open square brackets 2 space cross times space 10 to the power of negative 3 end exponent close square brackets space space space space space space space space space space space equals space minus open square brackets log space 2 space cross times space space 10 space log space 10 to the power of negative 3 end exponent close square brackets space space space space space space space space space space equals negative open square brackets 0.3010 space minus space 3 close square brackets space equals space 2.699 space space asymptotically equal to space 2.7 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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