High School
SAT
SAT Elite 1500
SAT Tutoring
ACT
ACT Elite 33
ACT Tutoring
University
MCAT
MCAT Elite 515
Med-School Admissions
Pre-Med Tutoring
Pre-Med Plus
LSAT
LSAT Elite 170
LSAT Self-Paced
LSAT Tutoring
DAT
DAT Elite
DAT Tutoring
Log in
Get Started for Free
Balance the following redox reaction in acidic conditions. What is the coeffici…
Related Topics
Wize University Chemistry Textbook > Electrochemistry
Balancing Redox Reactions
2 Activities
Balance the following redox reaction in acidic conditions. What is the coefficient on H
+
?
Cr
2
O
9
2
−
(aq)
+
HNO
2
(aq)
→
Cr
3
+
(aq)
+
NO
3
−
(aq)
{\small \text{Cr}_2\text{O}_9\ ^{2-}\text{(aq)} + \text{HNO}_2\text{(aq)} \rightarrow \text{Cr}^{3+}\text{(aq)} + \text{NO}_3\ ^-\text{(aq)}}
Cr
2
O
9
2
−
(aq)
+
HNO
2
(aq)
→
Cr
3
+
(aq)
+
NO
3
−
(aq)
2
3
5
8
10
I don't know
Check Submission
More Balancing Redox Reactions Questions:
Electrochemistry: Redox
Balance the following redox reaction in basic solution:
Cr(OH)
3
+ Br
2
→ CrO
4
2-
+ Br
-
in basic solution
Electrochemistry: Redox
Balance the following redox reaction in an acidic solution.
HCOOH + MnO
4
- --> CO
2
+ Mn2+
Aqua regia is a mixture of concentrated HNO
3
and HCl developed to dissolve gold. The process is a redox reaction as follows:
A
u
(
s
)
+
N
O
3
(
a
q
)
−
+
C
l
(
a
q
)
−
→
A
u
C
l
4
(
a
q
)
−
+
N
O
2
(
g
)
Au_{(s)}+NO^-_{3(aq)}+Cl^-_{(aq)} \to AuCl^-_{4(aq)}+NO_{2(g)}
A
u
(
s
)
+
N
O
3
(
a
q
)
−
+
C
l
(
a
q
)
−
→
A
u
C
l
4
(
a
q
)
−
+
N
O
2
(
g
)
Balance this reaction under acidic conditions and identifying the oxidized and reduced species.
Thermodynamics: Work Done During Acid Digestion of Magnesium
A 10.0 g piece of Mg
(s)
is deposited in a container with a vast excess of HCl
(aq)
. A reaction takes place forming hydrogen gas and Magnesium Chloride.
a) Write a balanced chemical reaction for the transformation
b) Calculate the work done by the system as a consequence of the reaction, if P
ex
= 1.1 atm and T = 298.15 K. You may assume ideal behaviour.
Balance the following redox reaction in basic solution:
Cr(OH)
3
+ Br
2
--> CrO
4
2- + Br- in basic solution
Balance the following redox reaction in an acidic solution.
HCOOH + MnO
4
- --> CO
2
+ Mn2+
Electrochemistry: Balancing Redox Reactions (Basic)
Balance the following redox reaction under basic condition:
Sn(OH)
3
−
(aq) + Bi(OH)
3
(s) → Sn(OH)
6
2−
(aq) + Bi (s)
Balance the following redox reaction:
HBrO (aq) → Br
−
(aq) + O
2
(g) under acidic condition
Balancing Redox Reactions (Basic)
Balance the following redox reactions under basic condition:
Cl
2
(aq) → ClO
3
−
(aq) + Cl
−
(aq)
Sn(OH)
3
−
(aq) + Bi(OH)
3
(s) → Sn(OH)
6
2−
(aq) + Bi (s)
Balancing Redox Reactions (Acidic)
Balance the following redox reactions under acidic condition:
H
2
S (aq) + H
2
O
2
(aq) → S (s) (acidic solution)
P
4
(s) + NO
3
−
(aq) → H
3
PO
4
(aq) + NO (g) (acidic solution)
Consider the following unbalanced equation:
Zn (s) + NO
3
−
(aq) + H
+
(aq) → Zn
2+
(aq) + NH
4
+
(aq) + H
2
O (l)
Write the net ionic and complete molecular reaction
Redox Balance
Consider the unbalanced redox reaction shown below.
IO
3
−
(aq) + HSO
3
−
(aq)
→
I
−
(aq) + SO
4
2−
(aq) (in acidic solution)
When the equation is balanced with the smallest whole number coefficients, what is the coefficient of SO
4
2−
?