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Important Questions on Equilibrium

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 63

Calculate $\mathrm{Ksp}$ for ${\mathrm{BaSO}}_4$ with the help of following data at $298\mathrm{K}.$ Specific conductance of saturated solution of ${\mathrm{BaSO}}_4=4.44\times {10}^{-6}{\mathrm{ohm}}^{-1}{\mathrm{cm}}^{-1}$ and that of water used for making the solution $=1.34\times {10}^{-6}$ ${\mathrm{ohm}}^{-1}{\mathrm{cm}}^{-1}$ molar ionic conductance at infinite dilution for ${\mathrm{Ba}}^{2+}$ and ${\mathrm{SO}}_4^{2+}$ are $127.28$ and $159.60$, respectively.

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 64

${10}^{-2}$ mole of $\mathrm{NaOH}$ was added to $10$litre of water at $25°\mathrm{C}$. The $\mathrm{pH}$ will change by:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 65

$100 \mathrm{mL}$ of $1 \mathrm{M} \mathrm{HCl}$s olution is mixed with $50 \mathrm{ml}$ of $2 \mathrm{M} \mathrm{HCl}$ solution. Hence, $\left[{\mathrm{H}}_3{\mathrm{O}}^{+}\right]$ in the resulting solution is:  

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 66

The number of hydroxide ions in $1\mathrm{cc}$ of a solution of $\mathrm{pH}=13$ is are:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 67

The dissociation constant of ${\mathrm{CH}}_3\mathrm{COOH}$ is $1.8\times {10}^{-5}$. The hydrolysis constant of ${\mathrm{CH}}_3{\mathrm{COO}}^{-}$ ions at $25°$$\mathrm{C}$ would be:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 68

Which of the following compound forms an aqueous solution which is acidic when compared with water?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 69

Choose the correct statement(s):

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 70

Which of the given solutions have $\mathrm{pOH}={\mathrm{pK}}_{\mathrm{b}}\left({\mathrm{NH}}_3\right)$?