The complete balanced equation for the dissolution of gold in aqua regia has to be found and the purpose of the addition of hydrochloric acid to the reaction mixture should be explained. Concept Introduction: Dissolution of gold in aqua regia: Aqua regia is the mixture of HNO 3 and HCl in the ratio of 1:3 . Neither of the acids can dissolve gold individually. But the aqua regia can dissolve gold and platinum. Nitric acid being a power full oxidising agent oxidises a very small amount of Au to Au + 3 . The formed gold ions later reacts with the chloride ions produced by the HCl and forms AuCl 4 − . The excess of hydrogen ions present in the solution stabilises the complex ion and also leads to the formation of chloroauric acid (HAuCl 4 ) . A chemical equation is the figurative representation of chemical reaction. In a chemical equation the reactants are in the left side and the products are in the right side. A balanced chemical equation serves as an easy tool for understanding a chemical reaction.
The complete balanced equation for the dissolution of gold in aqua regia has to be found and the purpose of the addition of hydrochloric acid to the reaction mixture should be explained. Concept Introduction: Dissolution of gold in aqua regia: Aqua regia is the mixture of HNO 3 and HCl in the ratio of 1:3 . Neither of the acids can dissolve gold individually. But the aqua regia can dissolve gold and platinum. Nitric acid being a power full oxidising agent oxidises a very small amount of Au to Au + 3 . The formed gold ions later reacts with the chloride ions produced by the HCl and forms AuCl 4 − . The excess of hydrogen ions present in the solution stabilises the complex ion and also leads to the formation of chloroauric acid (HAuCl 4 ) . A chemical equation is the figurative representation of chemical reaction. In a chemical equation the reactants are in the left side and the products are in the right side. A balanced chemical equation serves as an easy tool for understanding a chemical reaction.
Solution Summary: The author explains the complete balanced equation for the dissolution of gold in aqua regia and the purpose of the addition of hydrochloric acid to the reaction mixture.
The complete balanced equation for the dissolution of gold in aqua regia has to be found and the purpose of the addition of hydrochloric acid to the reaction mixture should be explained.
Concept Introduction:
Dissolution of gold in aqua regia: Aqua regia is the mixture of HNO3 and HCl in the ratio of 1:3. Neither of the acids can dissolve gold individually. But the aqua regia can dissolve gold and platinum. Nitric acid being a power full oxidising agent oxidises a very small amount of Au to Au+3. The formed gold ions later reacts with the chloride ions produced by the HCl and forms AuCl4−. The excess of hydrogen ions present in the solution stabilises the complex ion and also leads to the formation of chloroauric acid (HAuCl4).
A chemical equation is the figurative representation of chemical reaction. In a chemical equation the reactants are in the left side and the products are in the right side. A balanced chemical equation serves as an easy tool for understanding a chemical reaction.
(b)
Interpretation Introduction
Interpretation:
The complete balanced equation for the dissolution of gold in aqua regia has to be found and the purpose of the addition of hydrochloric acid to the reaction mixture should be explained.
Concept Introduction:
Dissolution of gold in aqua regia: Aqua regia is the mixture of HNO3 and HCl in the ratio of 1:3. Neither of the acids can dissolve gold individually. But the aqua regia can dissolve gold and platinum. Nitric acid being a power full oxidising agent oxidises a very small amount of Au to Au+3. The formed gold ions later reacts with the chloride ions produced by the HCl and forms AuCl4−. The excess of hydrogen ions present in the solution stabilises the complex ion and also leads to the formation of chloroauric acid (HAuCl4).
A chemical equation is the figurative representation of chemical reaction. In a chemical equation the reactants are in the left side and the products are in the right side. A balanced chemical equation serves as an easy tool for understanding a chemical reaction.
You are trying to decide if there is a single reagent you can add that will make the following synthesis possible without any other major side products:
xi
1. ☑
2. H₂O
хе
i
Draw the missing reagent X you think will make this synthesis work in the drawing area below.
If there is no reagent that will make your desired product in good yield or without complications, just check the box under the drawing area and leave it blank.
Click and drag to start drawing a
structure.
There is no reagent that will make this synthesis work without complications.
: ☐
S
☐
Predict the major products of this organic reaction:
H
OH
1. LiAlH4
2. H₂O
?
Note: be sure you use dash and wedge bonds when necessary, for example to distinguish between major products with different stereochemistry.
Click and drag to start drawing a
structure.
G
C
टे
For each reaction below, decide if the first stable organic product that forms in solution will create a new C-C bond, and check the appropriate box.
Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below.
Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first
stable product you expect to form in solution.
NH2
CI
MgCl
?
Will the first product that forms in this reaction
create a new CC bond?
Yes
No
MgBr
?
Will the first product that forms in this reaction
create a new CC bond?
Yes
No
G
टे
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell