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1)When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction
CaCO3 ---> CaO + CO2


How many grams of calcium carbonate are needed to produce 51.0 L of carbon dioxide at STP?

2) Butane, , is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is
2 C4H10 + 13 O2 ---> 8CO2 + 10 H20


At 1.00 atm and 23 degree Celsius , how many liters of carbon dioxide are formed by the combustion of 3.40 g of butane

3) Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant. For example, the residual pressure in a can is 1.51 atm when it is sitting on a shelf at 23 degree C . If the can is placed on top of the furnace where the temperature reaches the boiling point of water, what is the pressure inside the can? Express your answer numerically in atmospheres.

4) Calculate the average speed of an oxygen gas molecule, , at 29.0 degree Celsius.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M91058260

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