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प्रश्न
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
What volume, at STP, is occupied by 8 moles?
उत्तर
1 mole of CO2 occupies = 22.4 L at STP.
∴ 8 moles of CO2 will occupy = 22.4 × 8
= 179.2 L at STP
संबंधित प्रश्न
Nitrogen and oxygen gas react as illustrated by the equation given below: N2 + O2 → 2NO
Calculate the volume of each reacting gas required to produce 1400cm3 of nitric oxide.
Each of the two flasks contains 2.0 g of gas at the same temperature and pressure. One flask contains oxygen and the other hydrogen. Which sample contains the greater number of molecules?
What volume of oxygen is required to burn completely a mixture of 22.4 dm3 of methane and 11 .2 dm3 of hydrogen in to carbon dioxide and steam? Equations of the reactions are given below:
CH4 + 2O2 → CO2 + 2H2O
2H2 + O2 → 2H2O
Calculate the volume of oxygen at STP required for the complete combustion of 100 litres of carbon monoxide at the same temperature and pressure.
\[\ce{2CO + O2 → 2CO2}\]
200 cm3 of hydrogen and 150 cm3 of oxygen are mixed and ignited, as per the following reaction,
\[\ce{2H2 + O2 → 2H2O}\]
What volume of oxygen remains unreacted?
66g of ammonium sulphate is produced by the action of ammonia on sulphuric acid. Write a balanced equation and calculate mass of ammonia required.
Aluminium carbide reacts with water according to the following equation.
\[\ce{Al4C3 + 12H2O -> 3CH4 + 4Al(OH)3}\]
What mass of aluminium hydroxide is formed from 12g of aluminium carbide?
Calculate the mass of ammonia that can be obtained from 21.4 g of NH4Cl by the reaction:
\[\ce{2NH4Cl + Ca(OH)2 -> CaCl2 + 2H2O + 2NH3}\]
1.56 g of sodium peroxide reacts with water according to the following equation:
\[\ce{2Na2O2 + 2H2O -> 4NaOH + O2}\]
Calculate the volume of oxygen liberated at STP.
What will be the volume of ammonia when measured at STP?
