Methods of Expressing Concentration of Solutions

A 5 molar solution of  ${\text{H}}_2\text{S}{\text{O}}_4$ is diluted from 1 litre to a volume of 10 litres, the normality of the resulting solution will be :

Liquid benzene  $\left({\mathrm{C}}_6{\mathrm{H}}_6\right)$ burns in oxygen according to the equation

$2{\mathrm{C}}_6{\mathrm{H}}_6\left(\mathrm{l}\right)+15{\mathrm{O}}_2\left(\mathrm{g}\right)\to 12{\mathrm{CO}}_2\left(\mathrm{g}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)$

How many litres of  ${\mathrm{O}}_2$ at STP are needed to complete the combustion of $39 \mathrm{g}$ of liquid benzene?  $(\mathrm{Molecular}\mathrm{weight}\mathrm{of}{\mathrm{O}}_2=32,{\mathrm{C}}_6{\mathrm{H}}_6=78)$

What is mole percentage?

What is the effect of temperature on normality?

Which of the following is not affected by temperature?

Which of the following is not affected by the change in temperature of the solution?

Mass percentage of a solution does not changes with the change in temperature.

Which of the following way cannot be used to express the percent strength of the solution?

Define the term percent strength and also mention its types.

Explain the effect of temperature on mole fraction.

Which of the following concentration terms is temperature independent?

Why mole fraction is independent of temperature?

In what mass of water must $25 \mathrm{g}$ of ${\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O}$ be dissolved to obtain an $8\%$ solution of ${\mathrm{CuSO}}_4$? $\left(\mathrm{At}. \mathrm{wt}. \mathrm{of} \mathrm{Cu} = 63.5\right)$

Round off answer to the nearest integer value.

Calculate mole fraction of solute in an aqueous $4 \mathrm{m}$ solution assuming the density of the solution as $1.0 \frac{\mathrm{g}}{\mathrm{mL}}$.

Give your answer up to three decimal places. Give your answer as an nearest integer after multiplying with 1000.

A sugar syrup of weight $214.2 \mathrm{g}$ contains $34.2 \mathrm{g}$ of sugar $\left({\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}\right).$ Mole fraction of sugar in the syrup is $\mathrm{y}\times {10}^{-4}$.

Calculate the value of $\mathrm{y}$?

A sugar syrup of weight $214.2 \mathrm{g}$ contains $34.2 \mathrm{g}$ of sugar has a molal concentration of A,

Give your answer by multiplying the value of A in to 100 and rounding off the value to two significant figure.

$100\mathrm{mL}$ of $0.8 \mathrm{M} \mathrm{NaOH}$ is used to neutralise $100 \mathrm{mL}$ of the solution obtained by passing $2.70 \mathrm{g} {\mathrm{SO}}_2{\mathrm{Cl}}_2$ in water. Select the correct statement:

What is the mass of urea required for making $2.5 \mathrm{k}\mathrm{g}$ of $0.25$ molal aqueous solution?

A $100 \mathrm{ml}$ solution of $0.1 \mathrm{N} \mathrm{HCl}$ was titrated with $0.2 \mathrm{N} \mathrm{NaOH}$ solution. The titration was discontinued after adding $30 \mathrm{ml} \mathrm{of} \mathrm{NaOH}$solution. The remaining titration was completed by adding $0.25 \mathrm{N} \mathrm{KOH}$. The volume of $\mathrm{KOH}$ required for completing the titration is $16 \mathrm{ml}$.

A solution has been prepared by mixing $8.5 \mathrm{mL}$ of ethanol with $80 \mathrm{mL}$ of water. Calculate the volume percentage of the solution.