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Category > Biology Posted 20 May 2017 My Price 8.00

Biology Chem class 

Needing help with the following questions for Biology Chem class 

1. Calculator needed. When a pH is given it really is a measurement of H+ , specifically the concentration of H+. What is the pH if the concentration of H+ = 1.0 X 10-3.

2. It is important to understand the meaning between pH and the hydrogen ion concentration. These are linked mathematically and conceptually. If there is a pH difference  from a pH of 3 to a pH of 4, what is the change in the concentration of hydrogen ions? 

3.  Calculator needed! The pH scale is very familiar to all of us but not many people realize there is a pOH scale. What is the pOH when the pH is 7.28?

4. True or False Question

Buffers are composed of strong acids and bases and their salts, which helps prevent changes in buffers? True or False 

5. Multiple Choice

f I have a concentration of hydrogen ions that is 1.0 X 10 -4, what kind of solution is this? 

   

acidic
   

basic
   

neutral 
   

charged

Answers

SuperTutor
(15)
Status NEW Posted 20 May 2017 03:05 AM My Price 8.00

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