MCAT High Yield exam 2023 questions with complete solutions

When does pKa=pH? when there are an equal amount of Hs and OHs How does volume in a thermometer expand? it must have a larger volume expansion coefficient to fluctuate with temperature 00:49 01:08 Two amino acids linking together make a ____ bond peptide Fischer esterification forms an ester (COOR) involves reacting an acid and alcohol with a COOH to form an ester a protecting group does what? reduces nucleophilicity of the group that it is protecting oxidizing agent it oxidizes another species but becomes reduced itself in the process In an electrochemical cell oxidation occurs at the _____ and reduction occurs at the _____. So electron flow is from ____ to_____. anode, cathode anode to cathode Eocell is calculated how? E reduction potential at cathode- E reduction potential at anode charge on an cathode? the charge is negative because it attracts cations charge on an anode? the charge is positive because it attracts anions What is the molecular weight of each peptide bond formed? 18 Amino acids form in which direction? amino (N terminus) to carboxyl (C terminus)