20 Common APChem Errors...and how to avoid them!

Get ready for the AP Chemistry exam with Dr V! Learn to avoid common errors in writing answers to free response questions and what to watch out for. These are great tips for improving your score on AP Chemistry free response questions. 00:00 - Intro: 20 Common AP Chem Errors 00:38 - Error 1: Not Showing Setup or Work 01:07 - Error 2: Using Incorrect Molar Mass (2024 Exam Pitfall) 01:47 - Error 3: Incorrect Algebra Rearrangements 02:23 - Error 4: Titration Curve Misinterpretations (Equivalence vs. Half-Equivalence) 04:48 - Error 5: Mixing up Kp and Kc Expressions 06:01 - Error 6: Not Using Equilibrium Concentrations 07:27 - Error 7: Using the Wrong R Value (Universal Gas Constant) 09:14 - Error 8: Not Paying Attention to Units (kJ vs. J) 09:55 - Error 9: Excluding Units from Calculated Answers 11:19 - Error 10: Voltaic vs. Electrolytic Cell Signs 12:27 - Error 11: Describing Movement of Electrons vs. Ions 13:54 - Error 12: Using More than 2 Half-Reactions in a Balanced Equation 14:41 - Error 13: Multiplying E° Values by Coefficients 15:56 - Error 14: Not Following Lewis Structure Guidelines 16:58 - Error 15: IMFs and Physical Property Explanations 18:36 - Error 16: Inappropriate Periodic Trend Reasoning 20:44 - Error 17: Leaving Out Ion Charges in Net Ionic Equations 21:39 - Error 18: Separating Polyatomic Ions 22:21 - Error 19: Total Mass in Calorimetry Experiments 23:22 - Error 20: Sign Conventions in Thermochemistry 24:03 - Summary & Tips for Better FRQ Answers For error 19: the OH- should have a coefficient of 2. Sorry about that!