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Ray Of Light [21]
3 years ago
5

El dicromatico de potacio conduce electricidad y porque?

Chemistry
1 answer:
stepladder [879]3 years ago
4 0

Answer: i think its el

Explanation:

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The​ half-life of a certain tranquilizer in the bloodstream is 5050 hours. how long will it take for the drug to decay to 8686​%
Novosadov [1.4K]
Using the exponential decay model; we calculate "k"
We know that "A" is half of A0
A = A0 e^(k× 5050)
A/A0 = e^(5050k)
0.5 = e^(5055k)
In (0.5) = 5055k 
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To calculate how long it will take to decay to 86% of the original mass
0.86 = e^(-0.0001371t)
In (0.86) = -0.0001371t
-0.150823 = -0.0001371 t
 t = 1100 hours

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2 years ago
Công thức của A có dạng Ca(hco3)x có ptk là 162 tìm x
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2 years ago
The isomerization reaction, ch3nc → ch3cn, is first order and the rate constant is equal to 0.46 s-1 at 600 k. what is the conce
Harlamova29_29 [7]
According to this formula :
㏑[A] /[Ao] = - Kt 
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t = 20min = 0.2 x 60 =12 s
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㏑[A] / 0.3 = - 0.46 * 12
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by taking e^x for both side of the equation we can get [A]
∴[A] = 0.0012 mol dm^-3
6 0
3 years ago
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