QUESTION 1 The procedure for testing your unknown solution in this week's lab is identical to...

Question

Question

QUESTION 1 The procedure for testing your unknown solution in this weeks lab is identical to the procedure which you conduct QUESTION 2 The procedure for testing your unknown solution in this weeks lab is identical to the procedure which you conduct

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

The ondlusion ushich we andraw Prom the aloove at e ebserwation is (A) The unknolon Aolutron does not ontaui Pht on because h Pb r tie Ppt of Pbch This is sduble in hot watr Ppt frdcig Pbay Cons boRen kCroy 2m is addad, it frodues yeloto ppt Since by

Add a comment

Answer 2

Similar Homework Help Questions

QUESTION 1 The procedure for testing your unknown solution in this week's lab is identical to the procedure which y...

QUESTION 1 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...
PRE-LABORATORY QUESTIONS NAME: 1. According to the experimental procedure written above which cation in your sample...

PRE-LABORATORY QUESTIONS NAME: 1. According to the experimental procedure written above which cation in your sample should be identified first if it is indeed in the sample? 2. In what phase is the first cation supposed to be identified, in solid or liquid phase? And in what color? 3. According to the experimental procedure written above which cation in your sample should be identified second if it is indeed in the sample? 4. In what phase is the second cation...
Group 1 Flowchart Use the following chemical facts to construct a flow chart for this lab:...

Group 1 Flowchart Use the following chemical facts to construct a flow chart for this lab: 1 Group 1 cations are Ag, Hg, and Pb 2. AgH a and Pbare given to you in lab as their nitrates which are soluble in water (denoted by as) 3 AgHgand Pb are the only common ions that form a precipitate (denoted by with the Cl ion, presented as Hcl They all form white precipitates. 4. These Group 1 precipitates are separated from...

You have a solution that may contain up to two of the following 4 cations: Ag+,...

You have a solution that may contain up to two of the following 4 cations: Ag+, Pb2+, Cu2+, Ni2+. The initial solution is clear and blue. Upon adding NaCl, a white precipitate forms. You centrifuge and decant the solution, and heat the portion where the white precipitate is. Heating causes the white precipitate to dissolve. To the supernatant liquid, which is still blue, you add ammonia, resulting in a deep blue color. Which cations are present?
You are presented with an unknown that possibly has Ag+, Bi3+, Sn4+, Zn2+, Co2+ and Na+....

You are presented with an unknown that possibly has Ag+, Bi3+, Sn4+, Zn2+, Co2+ and Na+. You divide the solution into three equal volumes, labeling one “A,” one “B,” and one “C.” To “A” you add 6 M HCl and do not observe any precipitate forming. In tube B, you add 6 M HCl until the pH is 0.5 then add thioacetamide and heat the solution in a hot water bath for seven minutes, eventually observing a black precipitate. You...
Question: Procedure Separation and Identification of Pb2 (aq), Fe (aq), Al(a), and Cu Note: Tests should...

Question: Procedure Separation and Identification of Pb2 (aq), Fe (aq), Al(a), and Cu Note: Tests should be performed concurrently on the known and the unknown solutions. Volumes are approximate. All work excepting the centrifugation should be done in the fume hood 1. To about 2. mL of your sample in a test tube, add 5 drops (-0.2 mL) of 6 M HCl(a). Mix well and centrifuge. Decant the clear liquid into a clean test tube and save it for Step...

2) You are presented with an unknown that possibly has Ag-, Bi-, Sn+, Zn2+, Co2+ and...

2) You are presented with an unknown that possibly has Ag-, Bi-, Sn+, Zn2+, Co2+ and Na'. You divide the solution into three equal volumes, labeling one "A," one "B," and one "C." To "A" you add 6 M HCl and do not observe any precipitate forming. In tube B, you add 6 M HCl until the pH is 0.5 then add thioacetamide and heat the solution in a hot water bath for seven minutes, eventually observing a black precipitate....
so for my general unknown lab im testing for possible anion present I followed procedure 33...

so for my general unknown lab im testing for possible anion present I followed procedure 33 and adding the H2SO4 it had a brown bubbly reaction and heating it up produced a brown gas. i need help at determining the possible anion present. TREATMENT OF THE UNKNOWN WITH CLASS REAGENTS PROCEDURE 33 Treatment of the Solid with H2SO4 The reagents H2SO4 (cold and hot), AgNO3, and BaCl2 give characteristic reactions that pro. vide useful information about the identity of the...
EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with...

EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with your unknown. Follow the same procedure (separately) for both the unknown and known solutions. Wear gloves during all procedures. STEP 1: Precipitation of Group I. To 10 drops (only!) of the solution to be analyzed, add 2 drops 6 M HCl. Stir well. Centrifuge and decant the solution (S1) from the ppt (P1). Treat the ppt Pl according to Step 2. (There is no...

2. The instructions for Solution IV describe the preparation of a buffer solution. a. Calculate t...

post lab questions? 2. The instructions for Solution IV describe the preparation of a buffer solution. a. Calculate the pH of this buffer solution if it has an equal concentration of NHs and NH4 b. Does this solution buffer in the acidic, basic, or nearly neutral pH range? Explain. c. Explain why it is necessary to provide a buffer solution at this point in the procedure. Solution IV Add 2 drops NH.CI solution and check the pH of the solution...

QUESTION 1 The procedure for testing your unknown solution in this week's lab is identical to...

Homework Answers

Add Answer to:
QUESTION 1 The procedure for testing your unknown solution in this week's lab is identical to...

Post as a guest

Earn Coins