Tin metal (Sn) and purple iodine (I 2 ) combine to form orange, solid tin iodide with an unknown formula. Sn metal + solid I 2 → solid Sn x I y Weighed quantities of Sn and I 2 are combined, where the quantity of Sn is more than is needed to react with all of the iodine. After Sn x I y has been formed, it is isolated by filtration. The mass of excess tin is also determined. The following data were collected: Mass of tin (Sn) in the original mixture 1.056 g Mass of iodine (I 2 ) in the original mixture 1.047 g Mass of tin (Sn) recovered after reaction 0.601 g What is the empirical formula of the tin iodide obtained?
Tin metal (Sn) and purple iodine (I 2 ) combine to form orange, solid tin iodide with an unknown formula. Sn metal + solid I 2 → solid Sn x I y Weighed quantities of Sn and I 2 are combined, where the quantity of Sn is more than is needed to react with all of the iodine. After Sn x I y has been formed, it is isolated by filtration. The mass of excess tin is also determined. The following data were collected: Mass of tin (Sn) in the original mixture 1.056 g Mass of iodine (I 2 ) in the original mixture 1.047 g Mass of tin (Sn) recovered after reaction 0.601 g What is the empirical formula of the tin iodide obtained?
Solution Summary: The author explains the empirical formula of tin iodide obtained in the given reaction under given conditions.
Tin metal (Sn) and purple iodine (I2) combine to form orange, solid tin iodide with an unknown formula.
Sn metal + solid I2 → solid SnxIy
Weighed quantities of Sn and I2 are combined, where the quantity of Sn is more than is needed to react with all of the iodine. After SnxIy has been formed, it is isolated by filtration. The mass of excess tin is also determined. The following data were collected:
Mass of tin (Sn) in the original mixture 1.056 g
Mass of iodine (I2) in the original mixture 1.047 g
Mass of tin (Sn) recovered after reaction 0.601 g
What is the empirical formula of the tin iodide obtained?
(11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the
molecule depicted below.
Bond B
Bond A
Bond C
a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in
appropriate boxes.
Weakest
Bond
Strongest
Bond
b. (4pts) Consider the relative stability of all cleavage products that form when bonds A,
B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B,
and C are all carbon radicals.
i. Which ONE cleavage product is the most stable? A condensed or bond line
representation is fine.
ii. Which ONE cleavage product is the least stable? A condensed or bond line
representation is fine.
c. (5pts) Use principles discussed in lecture, supported by relevant structures, to
succinctly explain the why your part b (i) radical is more stable than your part b(ii)
radical. Written explanation can be no more than one-two succinct sentence(s)!
.
3°C
with
TH
12. (10pts total) Provide the major product for each reaction depicted below. If no reaction
occurs write NR. Assume heat dissipation is carefully controlled in the fluorine reaction.
3H
24 total (30)
24
21
2h
• 6H total
● 8H total
34
래
Br2
hv
major product
will be most
Substituted
12
hv
Br
NR
I too weak of a
participate in P-1
F₂
hv
Statistically
most favored
product will be
major
=
most subst =
thermo favored
hydrogen atom abstractor to
LL
F
Five chemistry project topic that does not involve practical
Chapter 2 Solutions
OWLv2 6-Months Printed Access Card for Kotz/Treichel/Townsend's Chemistry & Chemical Reactivity, 9th, 9th Edition
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