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 5 x 10-7 1 x 10-7 7 7 x 10-7 5 x 10-7 1 x 10-7 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reason that fats contain more energy than simple sugars, is fats have many more covalent bonds hydrogen bonds carbon atoms hydrogen atoms covalent bonds hydrogen bonds carbon atoms hydrogen atoms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following alcohols would be most soluble in water? butanol octanol ethanol methanol butanol octanol ethanol methanol ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers only in combination with polyprotic bases at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low only in combination with polyprotic bases at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on number of neutrons gain electronegativity number of protons released number of double bonds number of neutrons gain electronegativity number of protons released number of double bonds ANSWER DOWNLOAD EXAMIANS APP
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