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natulia [17]
3 years ago
14

1 i i r 1 X 1 I A mm mm nu. Inchon-Mvim u m an

Chemistry
1 answer:
Setler [38]3 years ago
8 0
The answer is that the pilot was tired of life and committed suicide with hundreds of passengers.
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A certain shade of blue has a frequency of 7.26 × 1014 Hz. What is the energy of exactly one photon of this light?
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7.20 it the energy because


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What assumptions do we make in order to use the Henderson-Hasselbalch equation? a. Both the weak acid and its conjugate base are
zepelin [54]

Answer:

The final and initial concentration of the acid and it's conjugate base are approximately equal, that is we use the weak acid approximation.

Explanation:

The Henderson-Hasselbalch is used to calculate the pH of a buffer solution. It depends on the weak acid approximation.

Since the weak acid ionizes only to a small extent, then we can say that [HA] ≈ [HA]i

Where [HA] = final concentration of the acid and [HA]i = initial concentration of the acid.

It also follows that [A^-] ≈ [A^-]i where [A^-] and[A^-]i refer to final and initial concentrations of the conjugate base hence the answer above.

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Answer:

78 kPa

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240 = Pa + Pb + Pc

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