Chemistry
One variety of household fuel is a mixture of propane (60%) and butane (40%). If 20 litres of this mixture is burnt, find the total volume of carbon dioxide added to the atmosphere. The combination reactions can be represented as:
C3H8 + 5O2 ⟶ 3CO2 + 4H2O
2C4H10 + 13O2 ⟶ 8CO2 + 10H2O
Related Questions
Copper sulphate solution is electrolysed using copper electrodes.
(a) Which electrode [cathode or anode] is the oxidizing electrode? Why?
(b) Write the equation for the reaction occurring at the above electrode.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information complete the following:
(a) …………… is the metallic element.
(b) Metal atoms tend to have a maximum of …………… electrons in the outermost shell.
(c) …………… is the reducing agent.
Rohit has solution X, Y and Z that has pH 2, 7 and 13 respectively.
Which solution:(a) will liberate sulphur dioxide gas when heated with sodium sulphite
(b) will liberate ammonia gas when reacted with ammonium chloride
(c) will not have any effect on litmus paper?
8.2 grams of calcium nitrate is decomposed by heating according to the equation
2Ca (NO3)2 ⟶ 2CaO +4NO2 + O2
Calculate the following:
(a) Volume of nitrogen dioxide obtained at STP
(b) Mass of CaO formed
(Atomic weights : Ca- 40, N-14, O-16)