The procedure for testing your unknown solution in this week's lab is identical to the procedure which you conducted in Week 1. The only difference is, of course, your Unknown Solution may or may not contain all of the ions which you tested for in Week 1. With that being said, please consider the following scenario: You enter the lab and obtain an Unknown Solution from the Stockroom. You begin testing the solution through the steps outlined in the flowchart on p. 9 of the Exp 22 document. You first add HCl, and centrifuge your mixture. You observe the formation of a white precipitate in the bottom of the test tube. After pouring off the supernatant liquid, you add hot water to the white precipitate. Upon addition of the hot water, you still have some white precipitate in the bottom of the test tube. Which of the following is a correct conclusion to draw at this point? (Choose only one answer.) A. U n. The unknown solution definitely has Ag+ present. B. The unknown solution could have Agt present, or Hg22+ present, or BOTH. O C. The unknown solution definitely has Hg22+ present. O D. The Unknown Solution definitely has Pb2+ present.
Answers: 1
Chemistry, 22.06.2019 12:30
How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work
Answers: 1
Chemistry, 22.06.2019 17:00
How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process
Answers: 1
Chemistry, 23.06.2019 03:00
In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas
Answers: 2
Chemistry, 23.06.2019 08:30
Which can be observed only in a microscopic view? a) structure of a muscle cell b) shape of a soybean plant c) foam insulation d) x-ray of a knee joint
Answers: 2
The procedure for testing your unknown solution in this week's lab is identical to the procedure whi...
English, 03.03.2021 17:00
Advanced Placement (AP), 03.03.2021 17:00
Mathematics, 03.03.2021 17:00
Mathematics, 03.03.2021 17:00
Spanish, 03.03.2021 17:00
Mathematics, 03.03.2021 17:00
Biology, 03.03.2021 17:00
Mathematics, 03.03.2021 17:00
English, 03.03.2021 17:00
Engineering, 03.03.2021 17:00