Explain. You can determine the mass of the sample by subtraction of the mass of the crucible (a). 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Set hot crucibles on to wire screens to cool. Responsible for the Safety component in all aspects of the experiment, Validates group members have the supplies, Responsible for formulating the purpose and the goal of the experiment. Trial 1 Trial 2 Trial 3, Only need ONE example of each type of calculation, 91 g - 90 g = 1 g C. Excited electrons do. This was done in three different trials. heating. You should contact him if you have any concerns. water molecules, and then again, measure the mass of the remaining salt. Trial 38.255 21.014 46.925 23.810 Dale Lab Sec Name Unkmmn no. relies on mass measurements to determine the percent by mass of water in a hydrated salt Experiment 5 lab report by xmpp.3m.com . low. 1-8, Lecture Notes - Chapter 1-10 , notes based on Dr. Gao's Powerpoint lectures, Dry Lab 2A - These are for Lab Professor Graeme or Constantino. Experimental errors that could have occurred during the The, mass of the hydrated salt is mass of the crucible, lid, and the measured 1 gram of the Athens salt, minus the mass of the fired lid and crucible. and h s. Instructor's approval of flame Mass of crucible, lid, and anhydrous Ist mass measurement (e) 2nd mass measurement (g) 3rd Accessibility StatementFor more information contact us atinfo@libretexts.org.