Chemistry, 04.10.2021 09:20, Timsters333
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 g of carbon were burned
in the presence of 76.7 g of oxygen, 12.7 g of oxygen remained unreacted. What mass of carbon dioxide was
produced?
Answers: 2
Chemistry, 22.06.2019 17:10, sophiaa23
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
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