Qualitative Analysis for group 1: What is the purpose of precipitating the Ag+, Pb2+, and Hg22+...
Qualitative Analysis for group 1:
What is the purpose of precipitating the Ag+, Pb2+, and Hg22+ ions as their chloride salts instead of their sulfide salts at the beginning of the experiment?
Homework Answers
Add Answer to:
Qualitative Analysis for group 1:
What is the purpose of precipitating the Ag+, Pb2+, and Hg22+...
EMISTRY 1112 3. Outline a flow scheme for the analysis of a sample that contains only a. Ag and Pb2+ b. Ag and Hg22...
EMISTRY 1112 3. Outline a flow scheme for the analysis of a sample that contains only a. Ag and Pb2+ b. Ag and Hg22 Choose reagent(s) that will physically separate each of the following pairs i net ionic equations for the reactions that occur. Reminder: all of the eg handouts are balanced net ionic equations. Indicate the colors of all preci to which step they represent if possible (example: 6M HCl, step A-1). a. Hg2+, Hg? b. AgCl, PbCI,
Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose
QUALITATIVE ANALYSIS OF GROUP II CATIONS Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose, metal cations are broadly classified into three groups based upon their solubilities. Group I cations, Pb2+, Ag, and Hg22+ form insoluble chlorides. Group Il cations, Cu2+, B12+, Hg2+, Cd2+ Sn4+, Sb2+ form insoluble sulfides belowyph 0.5 Group III cations, Al3+, Cr3+.Co3t felt Mn2+, Ni2+, Zn2+ form insoluble sulfides above pH 9. Group IV cations, Ba 2+, Ca2+, Mg2+, Na+, K+, NH4+, are the...
Qualitative Analysis of Group I Cations: Precipitation and Separation of Group I lons Nam Partner's Name...
Qualitative Analysis of Group I Cations: Precipitation and Separation of Group I lons Nam Partner's Name of any) Lab Section MWITH THE Advance Study Assignment 1. The reagent (chemical substance used) to precipitate the all the cations of Group _(symbol and molarity 2. Why do we add an additional drop of the precipitating to the Group I precipitate formed? 3. When we centrifuge why must we use a blank test tube (containing an equal volume of water) on the opposite...
93 CHM-153 Advance Study Program QUALITATIVE ANALYSIS OF GROUP II CATIONS DATE NAME 1. What is...
93 CHM-153 Advance Study Program QUALITATIVE ANALYSIS OF GROUP II CATIONS DATE NAME 1. What is the reagent responsible for the formation of hydrogen sulfide (H2S)? 2. When the cations are separated into subgroups, what is the purpose of the potassium hydroxide, KOH? 3. Explain the function of the aluminum wire and the mercury (II) chloride when testing for tin. 4. When testing for antimony, what reagent prevents tin from reacting with the H2S to form SnS2? 5. What reagent...
I'm in serious need of help. I worked on the Qualitative Analysis of Cations Lab, Groups...
I'm in serious need of help. I worked on the Qualitative Analysis of Cations Lab, Groups I and II. For group I, the possible Ions in a solution were Ag+1, Pb+2, Hg2+2. I was able to sucessfully percipitate out and confirm the presense of Silver. For Group II, the possible Ions were Hg2+, PB2+, Bi2+, Cu2+. The problem is I should have percipitated out three Cations and only found one. I know with certainty that I did not have Mercury...
Pre-Lab for Qualitative Analysis of Silver Group I Cations Lab 1. What are the ions that...
Pre-Lab for Qualitative Analysis of Silver Group I Cations Lab 1. What are the ions that are considered Group I cations? 2. Based on the Activities Series of Elements, explain why Group I ions would form precipitates when a strong, concentrated acid (such as HCI) is added to them. 3. Pby, and K Cro, will react with each other to form a precipitate if the concentrations are high enough. Write the complete, balanced equation for the reaction of Pbs and...
Ex: Separation of Group 1 Cations (Pb+ and Ag+) 10 drops of unknown was place along...
Ex: Separation of Group 1 Cations (Pb+ and Ag+) 10 drops of unknown was place along with 6 drops of 6M HCl, centrifuge. 2 more drops of 6M HCl, centrifuge. Decant supernate, use precipitate and add 5 drops of cold water, centrifuge. Test for Pb2+ 15 drops of water to precipitate & put in hot water, centrifuge then decant supernate. repeat x2 Combine supernates and save precipitate for Ag+ analysis. Add 3 drops of 1M K2CrO4 to supernate. yellow precipitate...
in the table below, predict which of the following reactant combinations will produce precipitates and write...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
in the table below, predict which of the following reactant combinations will produce precipitates and write...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g;
write "ss" if it is slightly soluble). Useful
information is also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
EMISTRY 1112 3. Outline a flow scheme for the analysis of a sample that contains only a. Ag and Pb2+ b. Ag and Hg22 Choose reagent(s) that will physically separate each of the following pairs i net ionic equations for the reactions that occur. Reminder: all of the eg handouts are balanced net ionic equations. Indicate the colors of all preci to which step they represent if possible (example: 6M HCl, step A-1). a. Hg2+, Hg? b. AgCl, PbCI,
QUALITATIVE ANALYSIS OF GROUP II CATIONS Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose, metal cations are broadly classified into three groups based upon their solubilities. Group I cations, Pb2+, Ag, and Hg22+ form insoluble chlorides. Group Il cations, Cu2+, B12+, Hg2+, Cd2+ Sn4+, Sb2+ form insoluble sulfides belowyph 0.5 Group III cations, Al3+, Cr3+.Co3t felt Mn2+, Ni2+, Zn2+ form insoluble sulfides above pH 9. Group IV cations, Ba 2+, Ca2+, Mg2+, Na+, K+, NH4+, are the...
Qualitative Analysis of Group I Cations: Precipitation and Separation of Group I lons Nam Partner's Name of any) Lab Section MWITH THE Advance Study Assignment 1. The reagent (chemical substance used) to precipitate the all the cations of Group _(symbol and molarity 2. Why do we add an additional drop of the precipitating to the Group I precipitate formed? 3. When we centrifuge why must we use a blank test tube (containing an equal volume of water) on the opposite...
93 CHM-153 Advance Study Program QUALITATIVE ANALYSIS OF GROUP II CATIONS DATE NAME 1. What is the reagent responsible for the formation of hydrogen sulfide (H2S)? 2. When the cations are separated into subgroups, what is the purpose of the potassium hydroxide, KOH? 3. Explain the function of the aluminum wire and the mercury (II) chloride when testing for tin. 4. When testing for antimony, what reagent prevents tin from reacting with the H2S to form SnS2? 5. What reagent...
Pre-Lab for Qualitative Analysis of Silver Group I Cations Lab 1. What are the ions that are considered Group I cations? 2. Based on the Activities Series of Elements, explain why Group I ions would form precipitates when a strong, concentrated acid (such as HCI) is added to them. 3. Pby, and K Cro, will react with each other to form a precipitate if the concentrations are high enough. Write the complete, balanced equation for the reaction of Pbs and...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g;
write "ss" if it is slightly soluble). Useful
information is also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
Most questions answered within 3 hours.
-
Oxidative phosphorylation is achieved through chemiosmotic
coupling, which turns chemical energy into osmotic potential energy
that...
asked 1 hour ago -
Hollywood Shoes would like to maintain their cash account at a
minimum level of $64,000, but...
asked 1 hour ago -
Proteins CtrA-P, DnaA, and GcrA behave similarly to what
molecule in the Eukaryotic Cell Cycle?
asked 1 hour ago -
TRUE OR FALSE
In case of a competitive tender procedure, in the request for
quotation, the...
asked 1 hour ago -
I am a little behind please provide some explanation, will
provide thumbs up.
This question considers...
asked 1 hour ago -
Let say the utility function as U(X,Y) = lnX + Y. Show that the
marginal rate...
asked 1 hour ago -
A current of I=8.0A is flowing in a typical extension cord of
length L=3.00m. The cord...
asked 1 hour ago -
1. When balancing the equation H2SO4 (aq) + NaOH (aq) →
Na2SO4(aq) + H2O(aq), would you...
asked 2 hours ago -
Provide a definition of “classification hierarchy” and
illustrate your definition with an example of how and...
asked 2 hours ago -
1. Describe the four main green solvents. Provide one example of
the use of each solvent....
asked 2 hours ago -
International ethics focus on:
1) exploitation of labor
2)corruption
3) environmental impact
4) none of the...
asked 2 hours ago -
Costing Models You work for XYZ trucking and your boss has asked
you to figure out...
asked 2 hours ago