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 the valence factor for the following acids/bases:

$\left(1\right) {\mathrm{CH}}_3\mathrm{COOH} \left(2\right) {\mathrm{NaH}}_2{\mathrm{PO}}_4 \left(3\right) {\mathrm{H}}_3{\mathrm{BO}}_3$

$\left(4\right) \mathrm{NaOH} \left(5\right) \mathrm{Ca}{\left(\mathrm{OH}\right)}_2 \left(6\right) \mathrm{CsOH}$

If $10 \mathrm{ml}$ of hypo solution $\left({\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3.5{\mathrm{H}}_2\mathrm{O}\right)$ is decolourized by $15 \mathrm{ml}$ of $\frac{\mathrm{M}}{40}$ iodine solution, then the concentration of hypo solution is _____ $\mathrm{g} {\mathrm{dm}}^{-3}$.

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 remains unaffected by the temperature change?

State if the molality of the solution is affected by the 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.

A solution is prepared by mixing $25.0 \mathrm{g}$ of water and $25.0 \mathrm{g}$ of ethanol. Determine the mole percentage of ethanol.

Calculate the mole percentage of carbon tetrachloride in a solution containing $70\%$ by mass of benzene.

Calculate the mole percentage of benzene in a solution containing $30\%$ by mass of carbon tetrachloride.