(a) Interpretation: The unbalanced oxidation and reduction half-reactions for the reaction Mn(s) + NO 3 − (aq) → Mn 2 + (aq) + NO 2 (g) should be written. Concept introduction: Oxidation is the loss of one or more electrons from a substance which is indicated by an increase in oxidation number and reduction is gain of one or more electrons from a substance which is indicated by a decrease in oxidation number. By comparing the oxidation number of an atom before and after a reaction, it can be predicted whether the reaction is oxidation or a reduction reaction. There are some rules for assigning oxidation numbers to atoms. In the elemental state, an atom has zero oxidation number. The oxidation number of monoatomic ions is equal to its charge In a polyatomic ion, atom usually has the same oxidation number as it has in the monoatomic ion. The sum of the oxidation number of polyatomic ions is equal to its net charge while zero for neutral compounds.
(a) Interpretation: The unbalanced oxidation and reduction half-reactions for the reaction Mn(s) + NO 3 − (aq) → Mn 2 + (aq) + NO 2 (g) should be written. Concept introduction: Oxidation is the loss of one or more electrons from a substance which is indicated by an increase in oxidation number and reduction is gain of one or more electrons from a substance which is indicated by a decrease in oxidation number. By comparing the oxidation number of an atom before and after a reaction, it can be predicted whether the reaction is oxidation or a reduction reaction. There are some rules for assigning oxidation numbers to atoms. In the elemental state, an atom has zero oxidation number. The oxidation number of monoatomic ions is equal to its charge In a polyatomic ion, atom usually has the same oxidation number as it has in the monoatomic ion. The sum of the oxidation number of polyatomic ions is equal to its net charge while zero for neutral compounds.
Solution Summary: The author explains the unbalanced oxidation and reduction half-reactions for the reaction.
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
Chapter 19, Problem 19.47SP
Interpretation Introduction
(a)
Interpretation:
The unbalanced oxidation and reduction half-reactions for the reaction Mn(s) + NO3−(aq) → Mn2+(aq) + NO2(g) should be written.
Concept introduction:
Oxidation is the loss of one or more electrons from a substance which is indicated by an increase in oxidation number and reduction is gain of one or more electrons from a substance which is indicated by a decrease in oxidation number.
By comparing the oxidation number of an atom before and after a reaction, it can be predicted whether the reaction is oxidation or a reduction reaction.
There are some rules for assigning oxidation numbers to atoms.
In the elemental state, an atom has zero oxidation number.
The oxidation number of monoatomic ions is equal to its charge
In a polyatomic ion, atom usually has the same oxidation number as it has in the monoatomic ion.
The sum of the oxidation number of polyatomic ions is equal to its net charge while zero for neutral compounds.
Interpretation Introduction
(b)
Interpretation:
The unbalanced oxidation and reduction half-reactions for the reaction Mn3+(aq) → Mn2+(aq) + MnO2(s) should be written.
Concept introduction:
Oxidation is the loss of one or more electrons from a substance which is indicated by an increase in oxidation number and reduction is gain of one or more electrons from a substance which is indicated by a decrease in oxidation number.
By comparing the oxidation number of an atom before and after a reaction, it can be predicted whether the reaction is oxidation or a reduction reaction.
There are some rules for assigning oxidation numbers to atoms.
In the elemental state, an atom has zero oxidation number.
The oxidation number of monoatomic ions is equal to its charge
In a polyatomic ion, atom usually has the same oxidation number as it has in the monoatomic ion.
The sum of the oxidation number of polyatomic ions is equal to its net charge while zero for neutral compounds.
5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52
BAS
PH-9.26 +10g (10.95))
14-4.59
PH=4.52
6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added
a Write the net ionic equation for the reaction which occurs
b. Should the pH of the solution increase or decrease sightly?
Calculate the pH of the buffer after the addition Ans: 9.54
Explain the inductive effect (+I and -I) in benzene derivatives.
The inductive effect (+I and -I) in benzene derivatives, does it guide ortho, meta or para?
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