You are given an unknown solution that contains only one of the Group III cations and...

You are given an unknown solution that contains only one of the Group III cations and no other metallic cations. Develop the simplest procedure you can think of to determine which cation is present. Draw a flow chart showing the procedure and the observations to be expected at each step with each of the possible cations. (1 point)

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queen_honey_blossom answered 2 years ago

For each of the following pairs of Group III cations, you are given an unknown and...

For each of the following pairs of Group III cations, you are given an unknown and told that it contains one of te two cations. Describe a simpe test to determine which cation is present in each case. (Unless otherwise noted, assume they are aqueous solutions. A. Al +3 and Fe +3 B. Fe (OH)3 (s) and Ni(OH)2 (s) C. Cr +3 and Al +3 IN CLEAR HANDWRITING PLEASE!!

a) A Group III unkown is colorless. What cations are probably absent? Why should one not...

a) A Group III unkown is colorless. What cations are probably absent? Why should one not rely definitely upon such an observation? b) Why will PbCrO4 precipiate when Pb2+ is added to a solution made up from K2Cr2O7?

You have been given a solution that contains a Group I, a Group II, and a...

You have been given a solution that contains a Group I, a Group II, and a Group III cation. · Develop a qualitative analysis scheme for these cations by selecting reagents and conditions for reactions. · Write the balanced net reaction for each cation reaction.

You are given a solution and asked to analyze it for the cations Ag+, Ca2+, and...

You are given a solution and asked to analyze it for the cations Ag+, Ca2+, and Zn2+. You add HCl and a white precipitate forms. You filter out the solid and add H2SO4, and nothing appears to happen. You then add hydrogen sulfide (H2S), and a black precipitate forms. Which ions should you report as being present in your solution?

You are given 10.00mL of a solution of an unknown acid. The pH of this solution...

You are given 10.00mL of a solution of an unknown acid. The pH of this solution is exactly 5.62. You determine that the concentration of the unknown acid was 0.1224 M. You also determined that the acid was monoprotoic (HA). What is the Ka and pKa of your unknown acid?

In the qualitative analysis scheme for metal ions, how are the Analytical Group III cations separated...

In the qualitative analysis scheme for metal ions, how are the Analytical Group III cations separated from the cations of Analytical Groups IV and V? a. by addition of H2S in basic solution, forming insoluble metal sulfides or hydroxides b. by addition of HCl, forming insoluble metal chlorides c. by addition of H2SO4, forming insoluble metal sulfates d. by addition of (NH4)2CO3 or (NH4)3PO4, forming insoluble metal carbonates or phosphates e. by addition of H2S in acidic solution, forming insoluble...

You have a solution that contains 25 g of an unknown non-ionizing polymer in a 250...

You have a solution that contains 25 g of an unknown non-ionizing polymer in a 250 mL solution of chloroform (CHCl3 ). The osmotic pressure of this solution at 25 ◦C is found to be 0.056 atm. What is the molecular weight of the unknown solid?

A solution contains: silver, lead (II), bismuth (III), antimony (III), nickel (II), and zinc. prepare a...

A solution contains: silver, lead (II), bismuth (III), antimony (III), nickel (II), and zinc. prepare a flow chart to show how you would separate and identify the six ions in this solution.

You were given 25.00mL of an acetic acid solution of unknown concentration. You find that it...

You were given 25.00mL of an acetic acid solution of unknown concentration. You find that it requires 37.15mL of a 0.1047M NaOH solution to exactly neutralize this sample (phenolphthalein was used as an indicator). Show detailed work.

A Ringer’s solution contains the following concentrations of cations: 144 mEq/L of Na+, 5 mEq/L of...

A Ringer’s solution contains the following concentrations of cations: 144 mEq/L of Na+, 5 mEq/L of K+, and 5 mEq/L of Ca2+. Part A: If Cl− is the only anion in the solution, what is the Cl− concentration in milliequivalents per liter? Express the concentration in milliequivalents per liter to three significant figures.

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