pH Scale

What happens if you don't calibrate a pH meter?

What is purpose of pH calibration?

Do all pH meters need calibration?

Which solution is used to calibrate pH?

How many types of calibration can be done in a pH meter?

If the ${\mathrm{H}}^{+}$ ion concentration in the blood $\left(\mathrm{pH}=7.36\right)$ is $\mathrm{x}$  times greater than that in the spinal fluid $\left(\mathrm{pH}=7.53\right)$, Round off the value of $\mathrm{x}$  to one decimal and report the value of $2\mathrm{x}$

If the hydroxide ion concentration of a solution of  $\mathrm{pH}$  $6.2$ is $\mathrm{A} \mathrm{X}{10}^{-8}$

Report the value of A by multiplying with10 and rounding off to two significant figures.

The $\mathrm{p}\mathrm{H}$ of $0.001\mathrm{ }\mathrm{M}\mathrm{ }\mathrm{B}\mathrm{a}{\left(\mathrm{O}\mathrm{H}\right)}_2$ solution will be _____.

The $\mathrm{p}\mathrm{H}$ of $0.001\mathrm{ }\mathrm{M}\mathrm{ }\mathrm{B}\mathrm{a}{\left(\mathrm{O}\mathrm{H}\right)}_2$ solution will be

When rain is accompanied by a thunderstorm, the collected rain water will have $\mathrm{pH}$ value

How many times a $0.1 M$ strong monobasic acid solution should be diluted so that pH of the resulting solution is tripled?

$100 \mathrm{ml}$ of $50 \mathrm{mol}\mathrm{ }{\mathrm{m}}^{-3}$ $\mathrm{Ba}{\left(\mathrm{OH}\right)}_2,\left(\mathrm{aq}.\right)$ solution is mixed with $400 \mathrm{ml}$ $50 \mathrm{mol}\mathrm{ }{\mathrm{m}}^{-3}$ $\mathrm{HX}\left(\mathrm{aq}.\right)$ solution. Given : $\mathrm{pKa}\left(\mathrm{HX}\right)=4$. Find final $\mathrm{pH}$ of solution.

The pH of pure water at is 7.0 . As the temperature increases ionisation of water increases, however the concentration of ${\mathrm{H}}^{+}$ ion and are equal. At $75°\mathrm{C}$, the $\mathrm{pH}$of water is:

Find the $\mathrm{pH}$ of the solution, when $100 \mathrm{mL}$ of $0.10 \mathrm{M}$ $\mathrm{NaOH}$ is mixed with $100 \mathrm{ml}$ of $0.05 \mathrm{M}$ ${\mathrm{CH}}_3\mathrm{COOH}$ solution. 

${\mathrm{K}}_{\mathrm{sp}}$ of $\mathrm{Cu}{\left(\mathrm{OH}\right)}_2$ is  $1\times {10}^{-19}$ . If reduction potential of $\mathrm{ }{\mathrm{Cu}}^{2+}/\mathrm{Cu}$ couples is 0.1335V in a solution and ${\mathrm{E}}^{\mathrm{o}}$  for ${\mathrm{Cu}}^{2+}/\mathrm{Cu}$ is 0.34 V, the pH of solution is…

How many litres of water must be added to 1 litre an aqueous solution of HCl with a pH of 1 to create an aqueous solution with pH of 2?

What is the $\mathrm{pH}$ of the $\mathrm{NaOH}$ solution when $0.04 \mathrm{g}$ of it dissolved in water and made to $100 \mathrm{mL}$ solution?

The pH of a solution is 6. Sufficient amount of acid is added to decrease the pH to 4. The increase in hydrogen ion concentration is ......times.

How many times a $0.1 M$ strong monobasic acid solution should be diluted so that pH of the resulting solution is tripled?

$NaOH$ is a strong base. What will be the $pH \mathrm{o}\mathrm{f}\mathrm{ }5.0\times {10}^{-2}M NaOH$ solution? $\left(\log 2=0.3\right)$