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VARVARA [1.3K]
2 years ago
14

Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have

more kinetic energy than liquids or solids.C.The particles of a solid vibrate.D.Gases have weak intermolecular forces between the atoms or molecules.
Chemistry
1 answer:
saw5 [17]2 years ago
7 0

Answer:

The answers are options b , c and d.

Hope this helps.

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From the calculations, the pH of the buffer is 3.1.

<h3>What is the pH of the buffer solution?</h3>

The  Henderson-Hasselbach equation comes in handy when we deal with the pH of a buffer solution. From that equation;

pH = pKa + log[(salt/acid]

Amount of the salt = 25/1000 *  0.50 M = 0.0125 moles

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Total volume = ( 25 + 75)/1000 = 0.1 L

Molarity of salt = 0.0125 moles/0.1 L = 0.125 M

Molarity of the acid = 0.075 moles/0.1 L = 0.75 M

Given that the pKa of lactic acid is 3.86

pH = 3.86 + log( 0.125/0.75)

pH = 3.1

Learn more about pH:brainly.com/question/5102027

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1 year ago
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