(a) Interpretation: Whether the species C 2 2 − is diamagnetic or paramagnetic needs to be determined. Concept introduction: The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
(a) Interpretation: Whether the species C 2 2 − is diamagnetic or paramagnetic needs to be determined. Concept introduction: The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Solution Summary: The author explains that the magnetic properties of a substance are determined by examining electronic configuration of the species.
Whether the species C22− is diamagnetic or paramagnetic needs to be determined.
Concept introduction:
The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Interpretation Introduction
(b)
Interpretation:
Whether the species C22+ is diamagnetic or paramagnetic needs to be determined.
Concept introduction:
The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Interpretation Introduction
(c)
Interpretation:
Whether the species F2− is diamagnetic or paramagnetic needs to be determined.
Concept introduction:
The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Interpretation Introduction
(d)
Interpretation:
Whether the species Cl2 is diamagnetic or paramagnetic needs to be determined.
Concept introduction:
The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Interpretation Introduction
(e)
Interpretation:
Whether the species Li2+ is diamagnetic or paramagnetic needs to be determined.
Concept introduction:
The magnetic properties of a substance are determined by examining electronic configuration of the species. Paramagnetic species are those in which unpaired electrons are remain in the orbital of any subshell and diamagnetic species does not contain unpaired electrons in the orbital of any subshell that means all electrons are paired.
Instructions: Complete the questions in the space provided. Show all your work
1. You are trying to determine the rate law expression for a reaction that you are completing at 25°C. You measure
the initial reaction rate and the starting concentrations of the reactions for 4 trials.
BrO³¯ (aq) + 5Br¯ (aq) + 6H* (aq) → 3Br₂ (l) + 3H2O (l)
Initial rate
Trial
[BrO3]
[H*]
[Br]
(mol/L)
(mol/L) | (mol/L)
(mol/L.s)
1
0.10
0.10
0.10
8.0
2
0.20
0.10
0.10
16
3
0.10
0.20
0.10
16
4
0.10
0.10
0.20
32
a.
Based on the above data what is the rate law expression?
b. Solve for the value of k (make sure to include proper units)
2. The proposed reaction mechanism is as follows:
i.
ii.
BrО¸¯ (aq) + H+ (aq) → HBrO3 (aq)
HBrO³ (aq) + H* (aq) → H₂BrO3* (aq)
iii.
H₂BrO³* (aq) + Br¯ (aq) → Br₂O₂ (aq) + H2O (l)
[Fast]
[Medium]
[Slow]
iv.
Br₂O₂ (aq) + 4H*(aq) + 4Br(aq) → 3Br₂ (l) + H2O (l)
[Fast]
Evaluate the validity of this proposed reaction. Justify your answer.
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