For the following reaction, the value of [H ] was measured over a period of time
ID: 491206 • Letter: F
Question
For the following reaction, the value of [H ] was measured over a period of time. Given the data, find the average rate of disappearance of H (aq) for the time interval between each measurement.
For the following reaction t (s) [H+] (M) 2.07 31.0 1.85 the value of [H*] was measured over a period of time. Given the data, find the average 56.0 173 rate of disappearance of H (aq) for the time interval between each measurement. 120.0 1.56 Interval: 0 s to 31.0 s 56.0 s to 120.0 s 31.0 s to 56.0 s Number Number Reaction rate: M/s M/ s What is the average rate of appearance of CH3Cl(aq) for the same time intervals? 31.0 s to 56.0 s 56.0 s to 120.0 s Interval: 0 s to 31.0 s Number Number Reaction rate:Explanation / Answer
Reaction rate = C2-C1 / (t2-t1)
so
for 0-31
dt = 31 -0 = 31
dC = 1.85-2.07 = -0.22 M
dC/dt = -0.22/31 = -0.007096 M/s
similar...
dt = 56-31 = 25
dC = 1.73-1.85= -0.12M
dC/dt = -0.12/25= -0.0048 M/s
finally
dt = 120-56= 64
dC = 1.56-1.73= -0.17
dC/dt = -0.12/64= -0.001875 M/s
for...
rate of appearance...
the rate of appeareance is exactly the same, but with positive sign, since ratio is 1:1
0.007096 , 0.0048 , 0.001875 M/s
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