Water, pH and Macromolecules
The pH of a solution is determined by

environmental effect
concentration of salt
dielectric constant of the medium
relative concentration of acids and bases

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Water, pH and Macromolecules
Salt dissolves well in water as water molecules

make nonpolar covalent bonds with the positively charged ions only
surround the ions because of their charge but do not form hydrogen bonds
share electrons with the ions to make polar covalent bonds
form hydrogen bonds with the positively and negatively charged ions

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