Question

I am having trouble creating a procedure to use to identify five unknown solutions we will...

I am having trouble creating a procedure to use to identify five unknown solutions we will be given in chem lab.

The five solutions will be an acid, a base, a chloride salt, a nitrate salt, and a sodium salt. I have to come up with steps to determine which compound is in each category. Only one will be in each solution.

Acid- HCl, HNO3, H2SO4

Base - NaOH, NH3, Na2S

Chloride Salt - NaCl, BaCl2, CuCl

Nitrate Salt - AgNO3, Cu(NO3)2, Fe(NO3)3(acidic)

Sodium Salt - NaI, Na2SO4, Na2CO3(basic)

We can identify certain ions from color or smell, but we must do a chemical test to confirm.

General test to determine Group I and II anions

Group I- to 10 drops of unknown, add 6 M NH3 until basic and then 4 drops BaCl2 solution. Formation of a PPT confirms presence of SO4, CO3, or PO4

Group II- to 10 drops of unknown, add 6 M HNO3 until acidic then add 4 drops more. Add 3 drops AgNO3 solution. Formation of a PPT confirms the presence of Cl, Br or I

Before coming to lab, outline the steps you plan to use to analyze your five solutions. (not in the form of a flowchart)

We will be given pH paper, so I'm thinking the first step would be to test the acidity of all of the unknowns, but as you can see, some of the salts will show up acidic or basic, so I am not really sure how to proceed after that.

Please help.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
I recently performed a lab on Chemical Equilibrium. Here is some background on the experiment: -We...
I recently performed a lab on Chemical Equilibrium. Here is some background on the experiment: -We made a stock solution by combining Fe(NO3)3 and NH4SCN. This made a blood red solution. Then, we added different reagents to see the change of color and the shift of equilibrium. I'm being asked the following question: Based on the color of solutions reported, determine the direction of the reaction's: Fe^3+(aq)+SCN^- --> [FeSCN]^2+(aq) equilibrium shift upon each addition of each reagent investigated and write...
ASAP FOR ALL QUESTIONS ABOUT THE Le Chatelier’s Principle LAB Procedure : I ) NaCl (s)...
ASAP FOR ALL QUESTIONS ABOUT THE Le Chatelier’s Principle LAB Procedure : I ) NaCl (s)   ßà   Na+ (aq)   + Cl- (aq)          *Add few drops of conc. HCl to 2 to 3 mL of saturated NaCl solution. II ) NH4Cl(s) ßà NH4+ (aq) + Cl-(aq)          *Add few drops of conc. HCl to 2 to 3 mL of saturated NH4Cl solution. III ) Fe+3(aq) + SCN-(aq) ßà Fe(SCN)+2(aq)          Prepare a stock solution by mixing 2mL each of 0.1M...
I have provided the information for the lab below. I want to see the chemical reactions...
I have provided the information for the lab below. I want to see the chemical reactions that take place during each step of the experiment. So in the procedures when a chemical was added i would like to see what the products and byproducts that were formed. I also want to see one over all reaction for this experiment to just get an overview of what exactly is happening during the experiment. Thank you:) Part B: Synthesis of [Co(NH3)5Cl]Cl2 Objective:...
Procedure Reaction 1: Dissolving the Copper 1. Obtain a clean, dry, glass centrifuge tube. 2. Place...
Procedure Reaction 1: Dissolving the Copper 1. Obtain a clean, dry, glass centrifuge tube. 2. Place a piece of copper wire in a weighing paper, determine the mass of the wire and place it in the centrifuge tube. The copper wire should weigh less than 0.0200 grams. 3. In a fume hood, add seven drops of concentrated nitric acid to the reaction tube so that the copper metal dissolves completely. Describe your observations in the lab report. (Caution, Concentrated nitric...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the Cl- ions be remove from CaCO3 after synthesis? I should answer the questions from the following experiment but if you know the answer and you are sure, yo do not need to read experiment. Please answer correctly because i hav no chance to make wrong :(((( Physical and Chemical Properties of Pure Substances Objective The aim of today’s experiment is to learn handling chemicals...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT