When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay: HCOOH ( g ) → CO 2 ( g ) + H 2 ( g ) The rate of reaction is monitored by measuring the total pressure in the reaction container. Time (s) Pressure (torr) 0 220 50 324 100 379 150 408 200 423 250 431 300 435 Calculate the rate constant and half-life in seconds for the reaction. At the start of the reaction (time = 0), only formic acid is present. (HINT: Find the partial pressure of formic acid using Dalton's law of partial pressure and the reaction stoichiometry to find P HCOOH at each time.)
When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay: HCOOH ( g ) → CO 2 ( g ) + H 2 ( g ) The rate of reaction is monitored by measuring the total pressure in the reaction container. Time (s) Pressure (torr) 0 220 50 324 100 379 150 408 200 423 250 431 300 435 Calculate the rate constant and half-life in seconds for the reaction. At the start of the reaction (time = 0), only formic acid is present. (HINT: Find the partial pressure of formic acid using Dalton's law of partial pressure and the reaction stoichiometry to find P HCOOH at each time.)
Solution Summary: The author explains the rate constant and half life in seconds for the reaction.
When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay:
HCOOH
(
g
)
→
CO
2
(
g
)
+
H
2
(
g
)
The rate of reaction is monitored by measuring the total pressure in the reaction container.
Time (s)
Pressure
(torr)
0
220
50
324
100
379
150
408
200
423
250
431
300
435
Calculate the rate constant and half-life in seconds for the reaction. At the start of the reaction (time = 0), only formic acid is present. (HINT: Find the partial pressure of formic acid using Dalton's law of partial pressure and the reaction stoichiometry to find
P
HCOOH
at each time.)
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
BA
HBr
of the fol
1)=MgCI
2) H₂O
major
NaOEt
Ts Cl
Py (pyridine)
1) 03
2) Me2S
1
4. Provide a clear arrow-pushing mechanism for the following reactions. Do not skip proton
transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted
without ambiguity.
a)
NHBoc
⚫OBn
HO.
H3C
CO2CH3
-OBn
H3C
H3C.
H3C.
NHBOC
CI
CO2CH3
Draw structures of the following compounds and identify their role:
mCPBA
(MCPBA)
DMS
Py
9-BBN
LAH
Sia₂BH
TsCI
PCC
t-BuOK
LDA
MeLi
n-BuLi
DMSO
DMF
Sodium Borohydride
Lithium DiisopropylAmide
2
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