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Unformatted text preview: Sam Eichenblatt Chem 1310 A2 The first experiment involved measuring the volume of a gas produced when Al(s) is added to water and NaOH. The gas produced is H 2 , and water vapor. Using PV=NRT, the gas constant was found including the water vapor and not including the water vapor. When water vapor was not included the constant was 22% of from the real value, compared to 19% with the corrected value. While these values are still pretty far off from the real value of .082, the corrected value is closer to. These values were probably off because of errors made during the experiment. This experiment shows that you must take everything into account in order to obtain an exact value. There was much room for error in this experiment. The operator could have added the wrong volume of NaOH, or wrong mass of Al. Also the measurements could have been misread, or the calculations, miscalculated. According to the data gathered in the second experiment, Boyles law still stands. The graph shows a linear relationship in volume vs. 1/Pressure. Boyles law states that PV=K, where K is a constant. shows a linear relationship in volume vs....
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- Fall '08