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Sedbober [7]
3 years ago
14

50 mph is a example of

Chemistry
1 answer:
Evgesh-ka [11]3 years ago
3 0
The answer will be speed
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NNADVOKAT [17]

Answer:

oxygen is an element because it is a pure substance which cannot be split into simpler substances by chemical means

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What are some bad thing jellyfish do?
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3 years ago
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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8 to 8.5 since that is the recommended and people usualy sleep more than that

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2NH3 + MgSO4 + 2H20-→ Mg(OH)2 + (NH4)2SO4
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