Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH It will form a membrane in water It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH It will form a membrane in water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The effectiveness or capacity of a buffer solution can be affected by molar concentration of the buffer components both (a) and (b) concentration of the conjugate base to the weak acid temperature of buffer components molar concentration of the buffer components both (a) and (b) concentration of the conjugate base to the weak acid temperature of buffer components ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following alcohols would be most soluble in water? methanol butanol ethanol octanol methanol butanol ethanol octanol 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 7 5 x 10-7 1 x 10-7 7 x 10-7 7 5 x 10-7 1 x 10-7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on number of protons released electronegativity number of neutrons gain number of double bonds number of protons released electronegativity number of neutrons gain number of double bonds ANSWER DOWNLOAD EXAMIANS APP
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