Acid-Base Chemistry With No Calculator
The Henderson-Hasselbalch Equation In Action On The MCAT Consider the following problem: we mix nitrous acid, which has a Ka of 4.0 × 10-4, with its conjugate base at a 4:1 acid-base ratio. What is the pH of the resulting…
What Is This MCAT Question Even Asking: What To Do When You Don’t Have a Clue
Imagine that you’ve finally done it – you’ve learned every piece of MCAT content information in your full set of prep books. You understand every concept from Bernoulli’s equation to aromatic amino acids, and you never miss a discrete question.…
What’s on the MCAT?
3 Ways to Kill Your Chances at an Acceptance at Your Med School Interview
by Ryan Gray, MD of The Medical School Headquarters While this may be stretching the truth a little bit, you need to go into your interview day with the thought that your acceptance to that school is yours for the…
Memorizing MCAT Psychology and MCAT Sociology Terminology
For many pre-med students, especially those who have majored in biology or a hard science, the Psychological, Social, and Biological Foundations of Behavior Section can be challenging to prepare for because it may not correspond as closely to the core…
The MCAT Podcast – Next Step Full length 10 Review II
Dr. Ryan Gray, of The Medical School Headquarters, and Next Step’s Vice President of MCAT Content, Bryan Schnedeker, team up to bring you The MCAT Podcast every Wednesday! This week’s podcast is continuing the coverage of Next Step’s Full Length…
MCAT Biology Question — Repolarization
The generation of an action potential within a cell is shown in the graph below. Which of the following statements is true of the membrane during repolarization at the indicated by the arrow? A. The voltage-gated sodium channels close stopping…
MCAT Physics Question — Velocity of Sound
Which of the following statements accurately orders the speed of sound through the following mediums: air (ρair = 1.275 kg/m3), water (ρwater = 1000 kg/m3), and copper (ρcopper = 8960 kg/m3)? A. Air > water > copper B. Air >…
MCAT Chemistry Question — Electrochemical Potential
Given the reduction potentials for the following half-reactions, Br2 (l) + 2e– → 2 Br–(aq) Eored= + 1.07 V Au3+ (aq) + 3 e– → Au (s) Eored= + 1.55 V What is the electrochemical potential for the following chemical reaction? 2…
