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1.21.00.8ІН.010.60.40.205070101020304080Time (s)Concentration (M60

Question
2H2O2(aq)→2H2O(l)+O2(g)
 
If the initial volume of the H2O2 solution is 1.6 L , what total amount of O2 (in moles) is formed in the first 50 s of reaction?
Express your answer using two significant figures.
1.2
1.0
0.8
ІН.01
0.6
0.4
0.2
0
50
70
10
10
20
30
40
80
Time (s)
Concentration (M
60
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1.2 1.0 0.8 ІН.01 0.6 0.4 0.2 0 50 70 10 10 20 30 40 80 Time (s) Concentration (M 60

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check_circleAnswer
Step 1

The balanced equation,

2H202
2H20
Initial concentration
1м
OM
Final concentration at50s
0.22M
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2H202 2H20 Initial concentration 1м OM Final concentration at50s 0.22M

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Step 2

Applying the rate law to the bala...

[он]р
1dн.о] dо,]
dt
dно
dt
dt
2
then
dн.о,1 dо1
dt
1
dt
2
After50sec
10.22M-1M _ х-ОМ
50sec
50sec
x-0.39M
Concentration of O, at 50sis 0.39M.
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[он]р 1dн.о] dо,] dt dно dt dt 2 then dн.о,1 dо1 dt 1 dt 2 After50sec 10.22M-1M _ х-ОМ 50sec 50sec x-0.39M Concentration of O, at 50sis 0.39M.

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