Water, pH and Macromolecules Who discovered and described the blood groups (ABO) classification? Otto Warburg Theodor Kocher Karl Landsteiner Karl Hooper Otto Warburg Theodor Kocher Karl Landsteiner Karl Hooper ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's only in combination with polyprotic bases at pH values around neutrality if their concentration is kept low at pH values around any of their pKa's only in combination with polyprotic bases at pH values around neutrality if their concentration is kept low 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 concentration of the conjugate base to the weak acid temperature of buffer components both (a) and (b) molar concentration of the buffer components concentration of the conjugate base to the weak acid temperature of buffer components both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following character does not apply to water? All three atoms in the water molecule readily form hydrogen bonds The water molecule is asymmetric The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized All three atoms in the water molecule readily form hydrogen bonds The water molecule is asymmetric The water molecule readily forms hydrophobic interactions The covalent bonds in water are highly polarized ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule are not important for the properties of water carry a partial positive charge form covalent bonds in ice carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice carry a partial negative charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2CO3/HCO3- H2PO4-/HPO42- All of these Histidine+/histidine H2CO3/HCO3- H2PO4-/HPO42- All of these Histidine+/histidine ANSWER DOWNLOAD EXAMIANS APP
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