what would happen to your results if not all of the ammonium chloride was sublimed when it was being heated in step 4 of the procedure. how would this affect the calculated percent of each of the 3 components of the mixture? ammonium chloride: explain sand: explain sodium chloride:explain
Separation of a Mixtur 5) Weigh the evaporating dish and its contents on the digital balance and record the weight on your data sheet 6) Weigh the second evaporating dish with the watch glass cover on it and record the weight on your data sheet. You will use this vaporating dish to collect the sodium chloride solution. 25 mL graduated cylinder and measure out 15 mL of Get a the deionized water. Pour this water over the contents in evaporating dis stir with a stirring rod to dissolve the sodium chloride. 8) Gently pour off the liquid into the second evaporating dish making sure that you leave the solid behind. This is called decanting. 9) Wash the solid in the first evaporating dish with 10 and 5 the evaporating ml of water, making sure to dec the liquid carefully into second second dish after each washing. Your first evaporating dish now contains wet sand and your evaporating dish contains water with dissolved sodium chloride 0) set up a ring stand, iron gauze, and Bunsen burner as is shown in the picture below. Notice that the evaporating dish is not as close to the Bunsen burner as in the earlier step. This is so you can heat the mixture gently. If you're working with a partner, use a econd set up so that the first and second evaporating dishes be heated simultaneously 11) Heat the first evaporating dish gently until the sand in it has completely dried. You may wish to cover the evaporating dish with a watch glass to prevent spatter. Allow this dish to cool to room temperature 2) Weigh the first evaporating dish with the sand and record its weight on your data sheet. 13) Heat the second dish covered with the watch glass until all of the water has boiled off. Be careful not to boil the water too quickly, as this will make a mess and cause you to lose some of the sodium chloride. Allow this dish and watch glass to cool to room temperature 4) Weigh the second evaporating dish with the sodium chloride and watch glass and record its weight on your data sheet. 15) Make sure that you show all of your calculations on the back of your data sheet. Disposal: Pour the dried sand into the jar in the fume hood. The sodium chloride can be washed off the evaporating dish and watch glass in the sink
A) Explain what steps(s) youcould have improved (and how) to help your percentrecovery.
b) Write a paragraph about thelab include briefly what was done, your result, were you correctand possible experimental errors- do not state human measurementerrors as errors. Be Specific, what specific human errors occurred,what measurement errors occurred, what process in the experimentcould errors have occurred.
