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Biochem Module 2 Set Questions And Answers

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Biochem Module 2 Set Questions And Answers What is the shape of water? Ans- Bent. The bond angle is 104.5 degrees. What is autoionization, and how is it important for water? Ans- Autoionization is the ability of a compound to react with itself to form ions. One water molecule reacts with a s...

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  • February 16, 2023
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  • 2022/2023
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Biochem Module 2 Set Questions And
Answers 2022 2023
What is the shape of water? Ans- Bent. The bond angle is 104.5 degrees.



What is autoionization, and how is it important for water? Ans- Autoionization is the ability of a
compound to react with itself to form ions. One water molecule reacts with a second molecule to form
two ions: H3O+ and OH-. These ions exist in small amounts in pure water and influence the chemistry of
water.



Name the three non-covalent forces discussed in this module Ans- 1. Dipole-dipole forces, 2. Hydrogen
bonding, and 3. London dispersion forces



What type of non-covalent interaction is known as the strongest dipole-dipole force? Ans- .hydrogen
bonds.



Would the following be a hydrogen donor or acceptor? Or both? Ans- .Only a hydrogen acceptor due to
the electrons on the oxygen. It is not a hydrogen donor because the electrons are bonded to a carbon.



How does the strength of London forces change with increasing molecular weight? Explain briefly. Ans-
As molecular weight increase, the strength of London forces also increase. This is due to the increased
number of electrons in larger molecules. The larger number of electrons creates the potential of
stronger temporary dipoles.



Calculate the pH of solution containing 0.12 M of OH-. Ans- pH = 13.08



If a solution contains 0.00023M of H+, then what is the OH- concentration? Ans- 4.35 X 10-11 M OH-



If a solution contains 1.67 x 10-8 M OH-, then what is H+ concentration? Ans- 5.99 x 10-7 M H+ or 6 X
10-7M

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