Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A Bronsted acid becomes __________ upon losing a proton. its conjugate base its conjugate acid highly reactive a hydronium ion its conjugate base its conjugate acid highly reactive a hydronium ion 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) temperature of buffer components concentration of the conjugate base to the weak acid molar concentration of the buffer components both (a) and (b) temperature of buffer components concentration of the conjugate base to the weak acid ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 10-7 M 1014 M 10-14 M 107 M 10-7 M 1014 M 10-14 M 107 M ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on number of neutrons gain number of double bonds electronegativity number of protons released number of neutrons gain number of double bonds electronegativity number of protons released ANSWER DOWNLOAD EXAMIANS APP
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