6 a) You are given a solution and asked to determine what cations are present in it.the soon of HCl results in the formation of a white precipitate, what cations may be present in) When the precipitate in (a) is washed with hot deionized water and centrifuged, a whitesolution, a clear solution is obtained. What does the result indicate?forms. When the supernatant from hot water wash is tested with potassium chromateWhen the precipitate obtained after hot deionized water (b) is treated with ammonia solution,he precipitate dissolves completely and no precipitate is seen. What does the result indicatedVo ne resulting supernatant from (c) was treated with HNO, a white precipitate forms. What doyou conclude?e) What are the ions present in the given solution?2. You are given a white solid which could be either Pb(NO,)2 or NANO3. How would youdetermine the identity of the solid?

Group I cations, Hg22+, Pb2+ and Ag+ precipitate on addition of HCl solution. The reactions are,…

a) You are given a solution and asked to determine what cations are present in it. the solon of HCl results in the formation of a white precipitate, what cations may be present in Prhen the precipitate in (a) is washed with hot deionized water and centrifuged, a white precipitate forms. When the supernatant from hot water wash is tested with potassium chromate solution, a clear solution is obtained. What does the result indicate? 9 When the precipitate obtained after hot deionized water (b) is treated with ammonia solution, the precipitate dissolves completely and no precipitate is seen. What does the result indicated he resulting supernatant from (c) was treated with HNO, a white precipitate forms. What do you conclude? e) What are the ions present in the given solution? 2. You are given a white solid which could be either Pb(NO3)2 or NANO3. How would you determine the identity of the solid?

a) You are given a solution and asked to determine what cations are present in it. the solon of HCl results in the formation of a white precipitate, what cations may be present in Prhen the precipitate in (a) is washed with hot deionized water and centrifuged, a white precipitate forms. When the supernatant from hot water wash is tested with potassium chromate solution, a clear solution is obtained. What does the result indicate? 9 When the precipitate obtained after hot deionized water (b) is treated with ammonia solution, the precipitate dissolves completely and no precipitate is seen. What does the result indicated he resulting supernatant from (c) was treated with HNO, a white precipitate forms. What do you conclude? e) What are the ions present in the given solution? 2. You are given a white solid which could be either Pb(NO3)2 or NANO3. How would you determine the identity of the solid?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 97AP

See similar textbooks

Similar questions

When titrating 50mL of 0.2MHCl, what quantity of 0.5M NaOH is needed to bring the solution to the equivalence point? a.80mL b.40mL c.20mL d.10mL
help find titration concentration from given data (use sig figs please)
When you add HCl to a solution containing aqueous sodium acetylsalicylate (structure shown below), a precipitate formed. Which is the structure of this precipitate?
In this activity, you will develop an experimental procedure to solve a problem. Consider the followingscenario:You are the manager of a chemical stockroom, and find a bottle containing approximately one liter of aclear and colorless solution of unknown identity and concentration. Your only clue to its identity is thatit was found between bottles of silver fluoride and sodium fluoride, so it is likely an aqueous solution ofone of those two compounds. You will need to develop a procedure to determine the following:a) The identity of the unknown solutionb) The concentration of the unknown solutionWrite out a precise procedure, which includes all glassware, reagents, and steps. You will also need towrite the calculations that you would need to determine the concentration of the solution. Assume thatyou have access to any reagent you might need
If during the titration a drop of the standardized NaOH adhered to the side of the Erlenmeyer flask and did not enter the vinegar solution would this result in a percent acetic acid that is too high, too low or would it have no effect? Explain
Most of the titrations that have done to date require to titrate an acid with a base until we see a pink color. How would we know you’ve reached the end point if we were titrating a base with acid? Assume phenolphthalein as the indicator.
Explain in details what happens in a buffer solution, taking note of the changes and the buffer capacity of acid and base solutions. How do you calculate the total ph change in an experiment that involves five trials.
Give the name of another weak acid that will have a similar titration curve. Briefly explain the reason for the similarity.
Which reagant will more likely to form precipitate during the analysis of an unknown salt? a. NaOH b. NH3
Consider the Heat of Solution Practical that was conducted. Temperature (oC) Amount of NaOH ( 0.015M) used to reach end point of titration (ml) 40 42 35 35 30 26 25 23 20 16 Use the data provided above in order to determine the heat of solution. Include any necessary graphs.
Why is there a need for buffers? Please explain in depth and detail
A basic buffer solution is to be prepared. Give the Henderson-Hasselbach equation (buffer equation) to be used in the calculation of the amount of the base and salt to be used.