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.
This molecule undergoes an E1 mechanism when stirred in methanol.
3rd attempt
CH₂OH
CH₂OH
6148
O
See Periodic Table. See Hint
Draw 3 chemical species including formal charges and lone pairs of electrons. Add the missing curved arrow notation.
H
N
O O SA 3
Br
I
Complete the mechanism for the E1 reaction below by following the directions written above each of the five boxes. Be sure to include lone pair
electrons and nonzero formal charges.
1st attempt
Y
0
+ Provide the missing curved arrow notation.
01:
See Periodic Table See Hint
H
C
Br
I
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