34 Answered Questions for the topic PH

03/07/17

Calculate the pH of a buffer solution obtained by dissolving 0m1 moles of pyridine and 0.2 moles of pyridinium chloride
I need help with my chem quiz and I do not understand how to approach a question like this. Please help.
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Ph

12/04/16

a triangle is a right triangle if the lengths, a, b, and c, of its three sides satisfy the following equation
mk
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09/27/16

TITRATION PROBLEM AND SOLVING pH
The problem deals with the titration of 441 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.3 M NaOH.   What will the pH of the solution be when 0.2294 L of 1.3 M... more
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10/13/15

Are the symbols Al+3 and Cl- anion, cation, atom, or molecule?
This is in a lesson about acids, bases, and pH.
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09/30/15

pH chemistry/precalculus
Find the hydrogen ion concentration of baking soda, which has a pH of 8.3. Be sure to use proper scientific notation to receive full credit.
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09/22/15

The most likely explanation for the results shown in Graph I is that:
#40 For this question, I originally picked D, but it is not the right answer. I am really confused on how to solve this problem. I would like to know why D isn't correct, along with the other wring... more
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03/01/15

Peptides, pH, and electrophoresis
I'm trying to determine if there's any truth to a claim that the pH of a buffer does't matter, because a polypeptide composed of a string of alanine residues won't move in the electrophoresis,... more
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Ph

01/29/15

A small slope on a velocity vs. time graph indicates a small acceleration. A. True B. False

it is a true of false question
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11/12/14

You carry out the titration of 35.00 mL of 0.1750 M pyridine using a 0.275 M HCl solution. Pyridine has a pKb = 8.77
You carry out the titration of 35.00 mL of 0.1750 M pyridine using a 0.275 M HCl solution. Pyridine has a pKb = 8.77 pH For: 0 mL 5.0 mL 1/2 Equivalence point 17.0 mL 21.0 mL Equivalence Point 26.0... more
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