Water, pH and Macromolecules Weak acids generally have pKa been seldom found in living systems pKa values greater than 2 that cannot be used to buffer values less than 1 been seldom found in living systems pKa values greater than 2 that cannot be used to buffer values less than 1 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Most of the important functional groups in biological molecules contain oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and a phosphate oxygen and/or nitrogen and are polar oxygen and/or nitrogen and are acidic nitrogen and a phosphate oxygen and a phosphate oxygen and/or nitrogen and are polar ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7? 7 x 10-7 1 x 10-7 5 x 10-7 7 7 x 10-7 1 x 10-7 5 x 10-7 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? methane argon sodium chloride gasoline (heptanes & octanes) methane argon sodium chloride gasoline (heptanes & octanes) ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial positive charge carry a partial negative charge form covalent bonds in ice are not important for the properties of water carry a partial positive charge carry a partial negative charge form covalent bonds in ice are not important for the properties of water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions will always have a pH of 7 are rarely found in living systems tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. will always have a pH of 7 are rarely found in living systems tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. ANSWER DOWNLOAD EXAMIANS APP
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