Evaluation of a Gas Constant (Experiment 3) Essay

Experiment 3 Evaluation of Gas Constant subprogramThe purpose of this lab is to demonstrate the ideal liquid law chthonic ordinary conditions. In this lab, the variables in the ideal gas law are known or can be found aside from the continual R. Thus, the R set can be found and relatively realise the relevancy of the ideal gas law to the lab conditions. The ideal gas law was tested using the reactionMg (s) + 2HCl2 (aq) H2 (g)Procedure1. Ribbons of milligram (5) were cut to the approximate length of the instructors example and were weighed distributively on scale 1. 2. HCl provided by the instructor was added to a eudiometer tube (8mL). The reprieve of the tube was filled with water. One of the magnesium tapes was wrapped around a piece of copper wire in the opening of the tube. 3. The eudiometer tube was and so inverted over and into a 450 mL beaker with water. The initial volume was recorded. 4. firearm the reaction occurred, the temperature was taken at 1 minute intervals for 3 minutes. 5. afterward the reaction occurred, the height difference from the solution within the eudiometer tube and the communicate of the liquid volume in the beaker was recorded. The final volume was also recorded. compact TableMean of R= .0737 amount deviation= .0298Relative Standard Deviation= 40.46%Summary TableMean of R= .0737Standard Deviation= .0298Relative Standard Deviation= 40.46%DiscussionThis lab was supposed to apply numbers close to the R invariant by plugging in the apprises acquired in reaction Magnesium and Hydrochloric acid reaction. (The reaction results in H2 gas.) The signify acquired from our data set was .0737 L-ATM/mol-K as opposed to the actual constant .08206 L-ATM/mol-K. The constant we acquired was much lower in value, potentially due to the outlier in our data set Trial Four. Trial Four resulted in the R value .0205 ATM-L/K-mol which skewed our relative mean, standard deviation and relative standard deviation. By removing the fourth tria l from the data set, the new mean is .08705 L-ATM/mol-K, a encompassing(prenominal) but slightly higher R value. The standard deviation would be .00236 and the relative standard deviation would be 2.71%. These values rescue more precision than the 40.46% relative standard deviation and .0298 standard deviation acquired in the entire data set. I believe there must have been an error in the methodology to produce the outlier result in the fourth trial. Too much liquid could have been spilled during the process or mayhap the magnesium did not fully react because it was so tightly demarcation line around the copper. The error in this lab could range from those listed above and wrong measurements.