Assuming that Ba(OH)_ 2 is completely ionised in aqueous solution… - Vidyadip

MCQ

Assuming that $\mathrm{Ba}(\mathrm{OH})_{2}$ is completely ionised in aqueous solution under the given conditions the concentration of $\mathrm{H}_{3} \mathrm{O}^{+}$ions in $0.005 \,\mathrm{M}$ aqueous solution of $\mathrm{Ba}(\mathrm{OH})_{2}$ at $298\, \mathrm{~K}$ is $.....\times 10^{-12}$ $mol$ $\mathrm{L}^{-1}$. (Nearest integer)

A
$2$
✓
$1$
C
$3$
D
$4$

✓

Answer

Correct option: B.

$1$

b
$\mathrm{Ba}(\mathrm{OH})_{2} \rightarrow \mathrm{Ba}^{+2}+2 \mathrm{OH}^{-} \rightarrow 2 \times 0.005=0.01=10^{-2}$

At $298\, \mathrm{~K}:$ in aq. solution $[H3O^{+}][\mathrm{OH}^{-}]=10^{-14}$

${\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=\frac{10^{-14}}{10^{-2}}=10^{-12}}$

${\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=1 \times 10^{-12}\, \mathrm{M}}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 6.2. Equilibrium - II (icon Equilibrium)→6.2. Equilibrium - II (icon Equilibrium) — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Among the following species, identify the pair having same bond order $CN^-, O_2^-, NO^+, CN^+$

The weight ratio of roasted ore, coke and limestone fed into the blast furnace in the manufacture of cast iron is :

Which range of linear spectrum of hydrogen atom is in the visible region?

For which of the following parameters the structural isomers ${C_2}{H_5}OH$ and $C{H_3}OC{H_3}$ would be expected to have the same values ? (Assume ideal behaviour)

Which of the following have maximum size?

Pick out the alkane which differs from the other members of the group.

The volume occupied by the nucleus is about______times of the volume of an atom.

For the given series of reaction-

$NH_3(g) + O_2(g) \rightarrow NO(g) + H_2O(l)$

$NO(g) + O_2(g) \rightarrow NO_2(g)$

To obtain maximum mass of $NO_2$ from a given mass of mixture $NH_3$ and $O_2$, the ratio of mass of $NH_3$ to $O_2$ should be -

$s{p^3}{d^2}$ hybrid orbitals are

Which of the following aqueous solution of compound have maximum pH?