General Chemistry 2 ACS Final Review 25 Questions with Verified Answers,100% CORRECT

General Chemistry 2 ACS Final Review 25 Questions with Verified Answers What are the 4 types of intermolecular forces listed from weakest to strongest? - CORRECT ANSWER London dispersion, dipole-dipole, hydrogen bonding, ion-dipole What effect does IMFs have on surface tension? - CORRECT ANSWER surface tension increases as strength of IMF increase What effect does IMFs have on viscosity? - CORRECT ANSWER viscosity increases as strength of IMFs increase What effect does IMFs have on boiling point? - CORRECT ANSWER boiling point increases as strength of IMFs increase Which are miscible in water: polar or nonpolar compounds/liquids? - CORRECT ANSWER polar Draw a general phase diagram. Determine where the solid, liquid and gas phases reside. What are the "lines" called and what is the name of the other two significant points. - CORRECT ANSWER Solubility generally increases or decreases with increased temperature? - CORRECT ANSWER increases What is dynamic equilibrium of a solution? - CORRECT ANSWER when rate of dissolution = rate of recrystallization What factors effect the solubility of a gas? - CORRECT ANSWER temperature ( when temp increases, solubility decreases) pressures (when pressure increases, solubility decreases) what is molarity? - CORRECT ANSWER measurement of concentration moles of solute/liters of solutuion Which of the following are strong or weak acids? 1. HCl 2. HF 3. HBr 4. HCHO2 5. HNO3 - CORRECT ANSWER 1. strong 2. weak 3. strong 4. weak. 5. strong Which of the following are strong or weak acids? 1. H2SO3 2. H2CO3 3. HI 4. HClO4 5. H2SO4 - CORRECT ANSWER 1. weak 2. weak 3. strong 4. strong 5. strong what are the 6 most commonly found "strong" acids? - CORRECT ANSWER HCl, HBr, HI, HNO3, HClO4, H2SO4 Which of the following are strong or weak bases? 1. LiOH 2. NH3 3. CO3^2- 4. KOH 5. Sr(OH)2 - CORRECT ANSWER 1. strong 2. weak 3. weak 4. strong 5. strong Which of the following are strong or weak bases? 1. HCO3^- 2. Ca(OH)2 3. NaOH 4. Ba(OH)2 5. C5H5N - CORRECT ANSWER 1. weak 2. strong 3. strong 4. strong 5. weak what are the 6 most commonly found "strong" bases? - CORRECT ANSWER LiOH, KOH, NaOH, Sr(OH)2, Ca(OH)2, Ba(OH)2 what is mole fraction? - CORRECT ANSWER mol solute/mole solute+mole solvent what is molality? - CORRECT ANSWER mol solute/kg solvent what are 4 colligative properties - CORRECT ANSWER freezing point depression, boiling point elevation, vapor pressure lowering, osmotic pressure what are factors that affect the rate of a reaction? - CORRECT ANSWER concentration of reactant particles, temperature, structure and orientation of particles T/F the rate of a reaction can be predicted from just a balanced equation? - CORRECT ANSWER F What does it mean if a rate reaction is zero order, first order or second order? - CORRECT ANSWER zero order: rate is independent on [reactants] first order: rate proportional to [reactants] second order: rate proportion to [reactants}^2 What is the 1/2 life equation for zero order rxn? - CORRECT ANSWER [Ao]/(2k) What is the 1/2 life equation for first order rxn? - CORRECT ANSWER 0.693/k What is the 1/2 life equation for second order rxn? - CORRECT ANSWER 1/(k [Ao])