Volumetric Analysis

The reaction of  $H_{2}S$ with   $H_2{O}_2$ is an example of _____________ reaction

The reaction of ${\mathrm{H}}_2\mathrm{S}$ with ${\mathrm{H}}_2{\mathrm{O}}_2$ is an example of _____________ reaction.

$9.8 \mathrm{g}$ of ${\mathrm{FeSO}}_4{\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4·{\mathrm{xH}}_2\mathrm{O}$ was dissolved in $250 \mathrm{mL}$ of its solution. $20 \mathrm{mL}$ of this solution required $20 \mathrm{mL}$ of ${\mathrm{KMnO}}_4$ solution, containing $3.53 \mathrm{g}$ of $90\%$ pure ${\mathrm{KMnO}}_4$ dissolved per litre. Calculate $\mathrm{x}$.

Round-off the answer to the nearest integer.

The volume used for a definite amount of unknown reagent at its equivalence point is known as _____.

Define titre value.

The $\mathrm{n}$ factor for dichromate ion in a redox reaction with Mohr's salt in an acidic medium is

${\mathrm{I}}_2$ obtained from $0.1 \mathrm{mol}$ of ${\mathrm{C}\mathrm{u}\mathrm{S}\mathrm{O}}_4$ required $100 \mathrm{ml} \text{of} 1 \mathrm{M}$ hypo solution, hence, mole percentage of pure $\mathrm{C}\mathrm{u}\mathrm{S}{\mathrm{O}}_4$ is

What mass of ${\mathrm{N}\mathrm{a}}_2{\mathrm{S}}_2{\mathrm{O}}_3.5{\mathrm{H}}_2\mathrm{O}$ is needed to make $500 \mathrm{c}{\mathrm{m}}^3$ of $0.200 \mathrm{N}$ solution for the reaction : $\mathrm{ }{2\mathrm{S}}_2\mathrm{ }{\mathrm{O}}_3^{2-}+\mathrm{ }{\mathrm{I}}_2\mathrm{ }⟶\mathrm{ }{\mathrm{S}}_4\mathrm{ }{\mathrm{O}}_6^{2-}\mathrm{ }+\mathrm{ }2{\mathrm{I}}^{-}$

${\mathrm{KMnO}}_4$ reacts with $\mathrm{KI}$, in basic medium to form ${\mathrm{I}}_2$ and ${\mathrm{MnO}}_2$ . When $250 \mathrm{ml}$ of $0.1 \mathrm{M} \mathrm{KI}$ solution is mixed with $250 \mathrm{ml}$ of $0.02 \mathrm{M} {\mathrm{KMnO}}_4$ in basic medium, what are the number of moles of ${\mathrm{I}}_2$ formed?

$25 \mathrm{mL}$ of a solution of ${\mathrm{Fe}}^{2+}$ ions require$32.45 \mathrm{mL}$ of $0.0153 \mathrm{M} {\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ solution. What is the molarity of the ${\mathrm{Fe}}^{2+}$ solution?

(Report the answer by multiplying the value with 100 and rounding off to three significant figures)

Which of the following halogen oxides is used for the estimation of carbon monoxide in automobile exhaust gases?

${\mathrm{KMnO}}_4$ acts as an oxidising agent in alkaline medium. When alkaline ${\mathrm{KMnO}}_4$ is treated with $\mathrm{KI}$, iodide ion is oxidised to ${{\mathrm{IO}}_{\mathrm{X}}}^{-}$. The value of $\mathrm{X}$ is _____.

Define "neutralisation".

In a titration experiment, $10 \mathrm{mL}$ of an ${\mathrm{FeCl}}_2$ solution consumed $25 \mathrm{mL}$ of a standard ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ solution to reach the equivalent point. The standard ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ solution is prepared by dissolving $1.225 \mathrm{g}$ of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ in $250 \mathrm{mL}$ water. The concentration of the ${\mathrm{FeCl}}_2$ solution is closest to

[Given : molecular weight of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7=294 \mathrm{g} {\mathrm{mol}}^{-1}$]

Explain Equivalent mass of element.

What do you mean by titrate?

How many $\mathrm{ml}$ of $0.125$ $\mathrm{M}$ ${\mathrm{Cr}}^{3+}$ must be reacted with $12.00 \mathrm{ml}$ of $0.200 \mathrm{M}$ ${{\mathrm{MnO}}_4}^{-}$ if the redox products are ${\mathrm{Cr}}_2{{\mathrm{O}}_7}^{2-}$and ${\mathrm{Mn}}^{2+}$$?$

$3.5 \mathrm{g}$ of a mixture of $\mathrm{NaOH}$ and $\mathrm{KOH}$ were dissolved and made up to $250 \mathrm{ml}. 25 \mathrm{mL}$ of this solution were completely neutralized by $17 \mathrm{mL}$ of $(\mathrm{N}/2) \mathrm{HCl}$solution. The percentage of $\mathrm{KOH}$ in mixture is:

In the reaction $\mathrm{Ca}(\mathrm{OH}{)}_2+{\mathrm{H}}_3{\mathrm{PO}}_4\cdots$ $\mathrm{Ca}$ ${}_3\left({\mathrm{PO}}_4\right)_2+{\mathrm{H}}_2\mathrm{O},$ the equivalent mass of ${\mathrm{H}}_2\mathrm{O}$ is: ($\mathrm{M}$ molecular mass)