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Water, pH and Macromolecules

Water, pH and Macromolecules
Who discovered and described the blood groups (ABO) classification?

Karl Hooper
Otto Warburg
Theodor Kocher
Karl Landsteiner

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Water, pH and Macromolecules
The strength of an acid depends on

number of double bonds
electronegativity
number of neutrons gain
number of protons released

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Water, pH and Macromolecules
H2O and CH4 are both examples of

acids
molecules
none of these
ions

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Water, pH and Macromolecules
The dissociation constant of H2O at 25° C is

10-7 M
1014 M
10-14 M
107 M

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Water, pH and Macromolecules
If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water?

It will act as a buffer and stabilize the pH
It will be attracted to water
be repelled by water
It will form a membrane in water

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Water, pH and Macromolecules
The effectiveness or capacity of a buffer solution can be affected by

concentration of the conjugate base to the weak acid
both (a) and (b)
temperature of buffer components
molar concentration of the buffer components

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