Chem 1a Exp #5

Chem 1a Exp #5 - 1 FeCl3 is used as a catalyst in the...

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1.) FeCl3 is used as a catalyst in the decomposition of H2O2. It is not consumed in the reaction itself; the amount of oxygen gas collected could not change if the amount of FeCl3 was changed . It would not change the amount of O2 gas collected because FeCl3 is just the catalyst; we would need more H2O2 to increase the amount of FeCl3 collected. 2.) Since some of the oxygen and hydrogen will dissolve in water, less moles of oxygen and hydrogen gas will be collected, which makes the molar volume too low. 3.) 4.) 5.)
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6.) If the gas temperature was too high when the volume of displaced water was measured, the molar volume calculated would be too high since water expands when hot. 7.) Real gases behave most ideally when pressure is close to 1 atm and at a high temperature. 8.) The molar volume for CO2 and HCl are slightly lower than the ideal molar volume because they were not measured at exact STP. 9.)
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Discussion This experiment was conducted to further the understanding of molar volumes of gases and to
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