S. No. Solution to be tested Expected pH value pH value obtained
1. $0.1 M N_{2} O H$ $13$ __________
2. $0.01 M N_{2} O H$
$12$ __________
3. $0.001 M N_{2} O H$ $11$ ___________
4. $0.0001 M N_{2} O H$ $10$ ___________
5. $0.00001 M N_{2} O H$ $9$ ___________

Open in App

Solution

The $p H$ value is given as,
$p H = 14 - p O H$

For $0.1 M N_{2} O H$

$p O H [.1 M] = - {log}_{10} 0.1$

$= 1$

So $p H = 13$

Similarly

For $0.01 M N_{2} O H$

$p O H [.1 M] = - {log}_{10} 0.01$

$= 2$

So $p H = 12$

For $0.001 M N_{2} O H$

$p O H [.1 M] = - {log}_{10} 0.001$

$= 3$

So $p H = 11$

For $0.0001 M N_{2} O H$

$p O H [.1 M] = - {log}_{10} 0.0001$

$= 4$

So $p H = 10$

For $0.00001 M N_{2} O H$

$p O H [.1 M] = - {log}_{10} 0.00001$

$= 5$

So $p H = 9$

Suggest Corrections

Similar questions

Variable	$4$	$8$	$9$	$10$	$11$	$12$	$13$
Frequency	$3$	$4$	$5$	$8$	$4$	$3$	$2$

x = \frac{1}{(2 - \sqrt{3})}

\frac{1}{(1 + \sqrt{2})} + \frac{1}{(\sqrt{2} + \sqrt{3})} + \frac{1}{(\sqrt{3} + \sqrt{4})} + . . . . . . + \frac{1}{(\sqrt{8} + \sqrt{9})}

\frac{11}{12} \div (\frac{5}{9} \times \frac{18}{25})

(2 \frac{1}{2} \times \frac{8}{10}) \div (1 \frac{1}{2} + \frac{5}{8})

\frac{15}{16}

(\frac{5}{6} - \frac{1}{2}) \div \frac{10}{11}

\frac{9}{8} \div \frac{3}{5}

(\frac{3}{4} + \frac{3}{5})

\frac{2}{5} \div {\frac{1}{5} o f [\frac{3}{4} - \frac{1}{2}] - 1}

(1 \frac{3}{4} \times 3 \frac{1}{7}) - (4 \frac{3}{8} \div 5 \frac{3}{5})

Re-arrange suitably and find the sum in each of the following :

(i) $\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}$

(ii) $\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}$

(iii) $\frac{3}{5} + \frac{7}{3} + \frac{9}{5} + \frac{- 13}{15} + \frac{- 7}{3}$

(iv) $\frac{4}{13} + \frac{- 5}{8} + \frac{- 8}{13} + \frac{9}{13}$

(v) $\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}$

(vi) $\frac{1}{8} + \frac{5}{12} + \frac{2}{7} + \frac{7}{12} + \frac{9}{7} + \frac{- 5}{16}$

∣ ∣ ∣ ∣ ∣ ∣ \begin{matrix} 7 & 13 & 10 & 6 5 & 9 & 7 & 4 8 & 12 & 11 & 7 4 & 10 & 6 & 3 \end{matrix} ∣ ∣ ∣ ∣ ∣ ∣

Join BYJU'S Learning Program