lab definition - Here are details of how the required...

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Here are details of how the required values will be measured: Temperature, T: The temperature will be determined by measuring the temperature of the water below the gas. The gas should be approximately the same temperature as the water. Volume, V: The O 2 will be pushed out of a partially sealed system, and the volume of water displaced or the mass (and thus volume via density) will be measured. For H 2 , the eudiometer tube has graduations on it, so you will be able to directly measure the volume of H 2 gas that is formed. number of moles, n: In the first reaction, the mass of the H 2 O 2 lost will be measured by the mass lost. In the second reaction, all of the Mg will react and HCl will be in excess. The number of moles of gas formed can be calculated from the amount of the limiting reactant (Mg or H 2 O 2 ) using stoichiometry. Balanced chemical equations are necessary. Pressure, P: Pressure will be a little more difficult to determine, but only for H 2 . There are three things to consider when determining the pressure exerted by the H
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This note was uploaded on 03/06/2011 for the course CHEM 444 taught by Professor Finn during the Spring '11 term at Chapman University .

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