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astra-53 [7]
3 years ago
5

Like all equilibrium constants, the value of kw depends on temperature. at body temperature (37∘c), kw=2.4⋅10−14. part a what is

the [h3o+] in pure water at body temperature?
Chemistry
1 answer:
LenaWriter [7]3 years ago
6 0
First, we have to know that we can put [H+] instead of [H3O+]

so, according to the reaction equation:

by using ICE table:

             H2O ↔  H+  +  OH-

initial                    0           0

change                +X         +X

Equ                       X             X

when Kw = [H+] [OH-]

and when we have Kw = 2.4 x 10^-14 

and when [H+] = [OH-] = X

∴ 2.4 x 10^-14 = X^2

∴ X = √(2.4 x 10^-14)

      = 1.55 x 10^-7

∴[H+] = 1.55 x 10^-7


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Answer:

\large \boxed{\text{86.8 L}}

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Calculations:  

\begin{array}{rcl}0.579 \times 150 & =& 1.00V_{2}\\86.85 & = & 1.00V_{2}\\V_{2} & = &\dfrac{86.85}{1.00}\\\\& = &\textbf{86.8}\\\end{array}\\\text{The new volume of the gas is } \large \boxed{\textbf{86.8 L}}

6 0
3 years ago
Need help with this
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How many grams of mgcl2 are contained in 500 grams of a 1.0% solution
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2 years ago
There is an error in the rate-determining step of the following proposed mechanism.
yulyashka [42]

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C

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7 0
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