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Shtirlitz [24]
2 years ago
5

PDF on Unit operation 1 and 2​

Chemistry
1 answer:
krok68 [10]2 years ago
6 0
https://mgdic.files.wordpress.com/2016/12/unit-operations.pdf this
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What is the volume of a sample if the density is 2.35 g/mL and the mass is 33.67 g?
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Suppose there is 1. 00 l of an aqueous buffer containing 60. 0 mmol of acetic acid (pa=4. 76) and 40. 0 mmol of acetate. Calcula
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For 1. 00 l of an aqueous buffer containing 60. 0 mmol of acetic acid (pa=4. 76) and 40. 0 mmol of acetate, the pH of this buffer is 4.58.

<h3>What is handerson Hasselbalch equation? </h3>

It is expressed as:

pH = pKa + log [A-]/[HA]

where,

[A-] is the molar concentration of conjugate base

[HA] is the molar concentration of weak acid

Given,

pKa = 4.76

<h3>Calculation of concentration:</h3>
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C = n/V

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pH = 4.76 + log(0.04/0.06)

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