pH Scale

To $5 \mathrm{mL}$ of $0.1 \mathrm{N} \mathrm{HCl}$, $10 \mathrm{mL} \mathrm{of} 0.1 \mathrm{M} {\mathrm{H}}_2{\mathrm{SO}}_4$ and $5 \mathrm{mL} \mathrm{of} 0.1 \mathrm{N} \mathrm{NaOH}$ solutions are added. The pH of the resulting solution is

An analyst wants to convert $1 \mathrm{L} \mathrm{HCl}$ of $\mathrm{pH}=1$ to a solution of $\mathrm{HCl}$ of $\mathrm{pH}=2$. The volume of water needed to do this dilution is _____ $\mathrm{mL}$. (Nearest integer)

$4\mathrm{gm}$ of $\mathrm{NaOH}$is dissolved per litre of the solution at $298 \mathrm{K}$. Calculate the $\mathrm{pH}$ of the solution.

$\mathrm{pH}+\mathrm{pOH}$ at ${500}^{\circ }\mathrm{C}$ is :

The ionisation constant of monobasic is $5\times {10}^{-2}$. Calculate the pH of $0.01 \mathrm{M}$ solution.

If $12.0$ is the $\mathrm{pH}$ of the solution of $\mathrm{NaOH}$, then $\mathrm{pH}$of the solution of ${\mathrm{H}}_2{\mathrm{SO}}_4$ of same molarity would be

How do you account for the acidic nature of ${10}^{-8}\hspace{0.17em}\mathrm{M}$ nitric acid ? Justify by mathematical calculation($\log 1.1=0.041$).

What is the $\mathrm{pH}$ of a solution obtained by dissolving $0.0005 \mathrm{mol}$ of the strong electrolyte, calcium hydroxide, $\mathrm{Ca}(\mathrm{OH}{)}_2$ to form $100\mathrm{ml}$ of a saturated solution (aqueous)?

${\mathrm{K}}_{\mathrm{w}}=1.0\times {10}^{-14}{\mathrm{M}}^2$

${\mathrm{NH}}_4\mathrm{OH}$ is $4.3\%$ ionised at $298\mathrm{K}$ in $0.01\mathrm{M}$ solution. Calculate the ionisation constant and pH of ${\mathrm{NH}}_4\mathrm{OH}$.

Which among the following has highest $\mathrm{pH}$?

The $\mathrm{pH}$ of $0.01 \mathrm{N}$ lime water is

What will be the pH of a solution obtained by mixing $800 \mathrm{mL}$ of $0.05 \mathrm{M} \mathrm{NaOH}$ and $200 \mathrm{mL}$ of $0.1 \mathrm{M} \mathrm{HCl}$ (assuming complete ionisation of the acid and the base)?

Calculate the pH of a 500 mL solution of 1M BOH. $\left({\mathrm{K}}_{\mathrm{b}}=2.5\times {10}^{-5}\right)$

What is the best $\mathrm{pH}$ for the human body?

Arrange the following in increasing order of their pH values:

 $\mathrm{NaOH}$ solution, Blood, Lemon juice.

The concentration of hydrogen ion in a sample of soft drink is $3.8\times {10}^{-4} \mathrm{M}$. What is its $\mathrm{pH}$?

In the titration of ${\mathrm{NaHCO}}_3$ with $\mathrm{HCl}$, indicator cannot be used

The hydrogen ion concentration of a solution with $\mathrm{pH}$ value $3.69$ is given by

The $\mathrm{pH}$ of a solution increase from $1$ to $2$ . The concentration of ${\mathrm{H}}^{+}$ion