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.

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

Define titre value.

$30 \mathrm{ml}$ solution containing a mixture of ${\mathrm{Na}}_2{\mathrm{CO}}_3$ and $\mathrm{NaOH}$ required $20 \mathrm{ml}$ of $1.5 \mathrm{N} \mathrm{HCl}$ for the phenolphthalein end point and in a separate titration $30 \mathrm{ml}$ of the same mixture required $25 \mathrm{ml}$ of same $\mathrm{HCl}$ when methyl orange used as an indicator for end point. Then find the ratio of number of moles of ${\mathrm{Na}}_2{\mathrm{CO}}_3$ to $\mathrm{NaOH}$ taken in the mixture.

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

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)

Which compound decolourises iodine solution?

Consider the redox reaction $2{\mathrm{S}}_2{\mathrm{O}}_3^{2-}+{\mathrm{I}}_2⟶{\mathrm{S}}_4{\mathrm{O}}_6^{2-}+2{\mathrm{I}}^{-}:$

Which indicator will be most suitable for the titration of acetic acid vs $\mathrm{NaOH}$?

$25 \mathrm{ml}$  of household bleach solution was mixed with $30 \mathrm{ml}$ of  $0.50$ $\mathrm{M}$ $\mathrm{KI}$ and $10 \mathrm{ml}$ of  $4 \mathrm{N}$ acetic acid. In the titration of the liberated iodine, $48 \mathrm{ml}$ of $0.25 \mathrm{N}$ ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ was used to reach the end point. The molarity of the household bleach solution is  

Find out the percentage purity of ${\mathrm{KMnO}}_4$ if $2\mathrm{g}$ impure sample of ${\mathrm{KMnO}}_4$ requires $40 \mathrm{ml}$ of $0.5 \mathrm{M}$ ferrous oxalate for complete reduction in acidic medium. 

The required volume (in litres) of $30$ volume ${\mathrm{H}}_2{\mathrm{O}}_2$ in acidified medium required for decolourization of one mole of ${\mathrm{KMnO}}_4$ is:

Calculate the moles of ${\mathrm{I}}^{-}$ ion that are required to react with $1 \mathrm{mole}$ of ${\mathrm{MnO}}_4^{-}$ in acidic medium?

Which of the following statements is incorrect for the reaction:

Excess of $\mathrm{KI}$ reacts with ${\mathrm{CuSO}}_4$ solution and ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ solution is added to it.

What is the volume ($\mathrm{ml}$) of $0.05$ $\mathrm{M} {\mathrm{KMnO}}_4$ (acid) required to oxidize $2.0 \mathrm{g}$ of ${\mathrm{FeSO}}_4$ in dilute solution?

If $10$ volume of ${\mathrm{H}}_2{\mathrm{O}}_2$ reacts completely with $100 \mathrm{ml}$ of $2 \mathrm{N} {\mathrm{KMnO}}_4$, calculate the volume of ${\mathrm{H}}_2{\mathrm{O}}_2$ used in $\mathrm{mL}$.