Methods of Expressing Concentration of Solutions

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?

50 mL of tincture of benzoin, an antiseptic solution contains 10 ml of benzoin. The volume percentage of benzoin is _____$\%$.

What is volume by volume 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.

$30 \mathrm{g}$ of sodium chloride is dissolved in $150 \mathrm{ml}$ of solution. Calculate the percentage mass by volume.

Percent mass by volume is the ratio of the mass of _____ to the volume of solution multiplied by $100$.

$2.5 \mathrm{g}$ of potassium chloride is dissolved in $100 \mathrm{ml}$ of solution. Calculate the concentration in term of percentage mass by volume.

Explain the effect of temperature on mole fraction.

Which of the following concentration terms is temperature independent?

Why mole fraction is independent of temperature?

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 $\mathrm{y}$?

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

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.