WATER, PH AND MACROMOLECULES QUIZ

bases are polar molecules and acids are not

acids donate hydrogen ions in water while bases accept hydrogen ions

bases donate hydrogen ions in water while acids accept hydrogen ions

acids are polar molecules and bases are not

gasoline (heptanes & octanes)

argon

sodium chloride

methane

cause a decrease in pH when acids are added to them.

tend to maintain a relatively constant pH.

will always have a pH of 7

are rarely found in living systems

acids

molecules

ions

none of these

form covalent bonds in ice

are not important for the properties of water

carry a partial positive charge

carry a partial negative charge

butanol

methanol

ethanol

octanol

values less than 1

pKa values greater than 2

that cannot be used to buffer

been seldom found in living systems

temperature of buffer components

both (a) and (b)

molar concentration of the buffer components

concentration of the conjugate base to the weak acid

strong chemical bonds that hold together the atoms within a molecule

strong chemical bonds that link together separate molecules

weak chemical bonds that link together separate molecules

weak chemical bonds that hold together the atoms within a molecule

It will act as a buffer and stabilize the pH

It will form a membrane in water

be repelled by water

It will be attracted to water