MCAT BIO Domain 3: General Chemistry Welcome to your MCAT BIO Domain 3: General Chemistry 1. MCAT Bio: General Chemistry Which of the following changes will NOT increase the rate of a chemical reaction? Increasing the concentration of reactants Increasing the temperature Adding a catalyst Decreasing the surface area of solid reactants None 2. MCAT Bio: General Chemistry In a redox reaction, if the oxidation state of an element increases, what is the corresponding process for that element? Reduction Oxidation Sublimation Deposition None 3. MCAT Bio: General Chemistry What is the pH of a 0.001 M solution of HCl, a strong acid? 1 2 3 4 None 4. MCAT Bio: General Chemistry Which of the following represents the electron configuration for a chromium (Cr) atom in its ground state? [Ar]4s^2 3d^4 [Ar]4s^1 3d^5 [Ar]4s^2 3d^3 [Ar]4s^2 3d^5 None 5. MCAT Bio: General Chemistry What is the molecular geometry of NH3? Tetrahedral Trigonal planar Trigonal pyramidal Linear None 6. MCAT Bio: General Chemistry What is the standard electrode potential for a half-cell in which the reduction of Ag^+ to Ag(s) occurs, if the standard reduction potential for Ag^+/Ag is 0.80 V? 0.80 V -0.80 V 0.40 V -0.40 V None 7. MCAT Bio: General Chemistry Which of the following compounds has the highest boiling point? CH4 NH3 H2O HF None 8. MCAT Bio: General Chemistry What is the entropy change for a process where a solid converts to a liquid at its melting point? Entropy decreases Entropy remains constant Entropy increases Cannot be determined None 9. MCAT Bio: General Chemistry If the equilibrium constant for a reaction is greater than 1, which of the following is true? The reaction is exothermic. The reaction is endothermic. The products are favored at equilibrium. The reactants are favored at equilibrium. None 10. MCAT Bio: General Chemistry In a buffer solution made from acetic acid and sodium acetate, what role does the acetic acid play? It acts as a strong base. It acts as a weak base. It acts as a strong acid. It acts as a weak acid. None 1 out of 10 Time is Up! Time's up
