S P Singh Solutions for Chapter: Mole Concept and Stoichiometry, Exercise 1: EXERCISE-5A

Ammonia may be oxidised to nitrogen monoxide in the presence of a catalyst according to the following equation.

$4{\mathrm{NH}}_3+5{\mathrm{O}}_2\to 4\mathrm{NO}+6{\mathrm{H}}_2\mathrm{O}$

If $27$ litres of reactants are consumed. What volume of nitrogen monoxide is produced at the same temperature and pressure?

A mixture of hydrogen and chlorine occupying $36 {\mathrm{cm}}^3$ was exploded. On shaking it with water, $4 {\mathrm{cm}}^3$ of hydrogen was left behind. Find the composition of the mixture.

What volume of air (containing $20\%{\mathrm{O}}_2$ by volume) will be required to burn completely $10 {\mathrm{cm}}^3$ each of methane and acetylene.

${\mathrm{CH}}_4+2{\mathrm{O}}_2\to {\mathrm{CO}}_2+2{\mathrm{H}}_2\mathrm{O}$

$2{\mathrm{C}}_2{\mathrm{H}}_2+5{\mathrm{O}}_2\to 4{\mathrm{CO}}_2+2{\mathrm{H}}_2\mathrm{O}$

LPG has $60\%$ propane and $40\%$butane : $10$ litres of this mixture is burnt. Calculate the volume of carbon dioxide added to atmosphere. 

${\mathrm{C}}_3{\mathrm{H}}_8+5{\mathrm{O}}_2\to 3{\mathrm{CO}}_2+4{\mathrm{H}}_2\mathrm{O}$

$2{\mathrm{C}}_4{\mathrm{H}}_{10}+13{\mathrm{O}}_2\to 8{\mathrm{CO}}_2+10{\mathrm{H}}_2\mathrm{O}$

$200 {\mathrm{cm}}^3$ of ${\mathrm{CO}}_2$ is collected at STP when a mixture of acetylene and oxygen is ignited. Calculate the volume of acetylene and oxygen at STP in original mixture

$2{\mathrm{C}}_2{\mathrm{H}}_2\left(\mathrm{g}\right)+5{\mathrm{O}}_2\left(\mathrm{g}\right)\to 4{\mathrm{CO}}_2\left(\mathrm{g}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)$

You have collected (a) $2$ litres of ${\mathrm{CO}}_2$​ (b) $3$ litres of chlorine (c) $5$ litres of hydrogen (d) $4$ litres of nitrogen and (e) $1$ litre of ${\mathrm{SO}}_2$, under similar conditions of temperature and pressure. Which gas sample will have the greatest number of molecules?

You have collected (a) $2$ litres of ${\mathrm{CO}}_2$​ (b) $3$ litres of chlorine (c) $5$ litres of hydrogen (d) $4$ litres of nitrogen and (e) $1$ litre of ${\mathrm{SO}}_2$, under similar conditions of temperature and pressure. Which gas sample will have the least number of molecules ?

The gases chlorine, nitrogen, ammonia and sulphur dioxide are collected under the same conditions of temperature and pressure. The following table gives the volumes of gases collected and the number of molecules $\left(\mathrm{x}\right)$ in $20$ litres of nitrogen. You are to complete the table giving the number of molecules in the other gases in terms of $\mathrm{x}$.