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egoroff_w [7]
3 years ago
11

How much ko2 is needed to react with 75.0 l of carbon dioxide at –25˚c and 215 kpa?

Chemistry
1 answer:
Anettt [7]3 years ago
5 0
First, we convert the pressure in kPa to atm. That is,
                             (215 kPa) x (1 atm/ 101.325 kPa) = 2.122 atm
Then, determine the amount of carbon (C) in mol by assuming that it is an ideal gas.
            n = (2.122 atm)(75 L) / (0.0821 L.atm/mol.K)(-25 + 273.15)
                                 n = 7.81 mols
The reaction is expressed as,
                        4KO2 + 2CO2 --> 2K2CO3 + 3O2
From the equation,
               (7.81 mols CO2) x (4 mols KO2/2 mols CO2) = 15.62 mols KO2
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Compared to the normal freezing point and boiling point of water, a 1-molar solution of sugar in water will have a
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Answer :

  • Boiling point of the sugar solution will be higher than that of water's boling point.
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Explanation:

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Boiling point of solution is always higher than that of the pure solvent

Vapor pressure increases with increase in temperature which means sugar solution will be heated more to make vapor pressure equal to atmospheric pressure.

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What is the concentration of a solution in which 10.0 g of AgNO, is dissolved in 450 mL of solution?
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M=0.15

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