dat chemistry

Test your General Chemistry skills with today’s DAT and OAT practice question from Dr. Jim Romano. This problem reviews electron configurations, ion formation, and electron removal, important General Chemistry concepts for DAT and OAT preparation. Try the problem first, then check the second...

Test your General Chemistry skills with today’s DAT and OAT practice question from Dr. Jim Romano. This problem reviews electron configurations, ion formation, and electron removal, important General Chemistry concepts for DAT and OAT preparation. Try the problem first, then check the second...

Kinetics and Activation Energy are two important General Chemistry topics tested on the DAT and OAT. In this video, Dr. Jim Romano explains reaction rates, activation energy, collision theory, and the factors that affect chemical reactions. Free DAT Resources: Start Your DAT and OAT...

Can you identify the correct answer before viewing the solution? Understanding resonance structures and electron delocalization is essential for success in General Chemistry and frequently tested on both the DAT and OAT. If you're preparing for the DAT or OAT, the DAT Destroyer and Math...

Acid-base strength is one of the most important Organic Chemistry topics tested on the DAT and OAT. VIDEO: Many students try to memorize pKa values and reaction patterns, but understanding resonance stabilization and conjugate base stability is often the key to answering these questions...

Quantum numbers are a fundamental General Chemistry topic that frequently appears on both the DAT and OAT. In this video, Dr. Jim Romano explains: • Principal Quantum Number (n) • Angular Momentum Quantum Number (l) • Magnetic Quantum Number (ml) • Spin Quantum Number (ms) Understanding...

Many students overlook how alpha hydrogens affect enol formation. After oxidation with PCC, the product forms a ketone. From there, the number of possible enols depends on how many distinct alpha positions are available. This is where stereochemistry becomes important. Core Foundation...

Here is today’s DAT Question of the Day from Dr. Jim Romano. Cobalt(II) chloride hexahydrate is a red-pink, crystalline, water-soluble solid often used as a humidity indicator, in electroplating, and as a catalyst in organic synthesis. At infinite dilution, what is the Van’t Hoff factor...

Oxidation numbers are a high-yield General Chemistry topic on the DAT and a common source of avoidable mistakes. In this short video, Dr. Jim Romano explains how to assign oxidation numbers step by step and shows how the DAT tests this concept so students do not fall into common traps. This...

1 gram of an element combines with 0.35 g of oxygen to form X₂O.What is the atomic mass of X? a) 45 b) 23 c) 52 d) 77 e) 100 Correct answer: b) 23 As emphasized in class, this question is not about memorization — it’s about units. You must start with grams and end with g/mol. If the...

DAT Question of the Day 25.0 g of K₂C₂O₄ is reacted with KMnO₄ according to the following chemical equation: 5 K₂C₂O₄ (aq) + 2 KMnO₄ (aq) + 8 H₂O → 10 CO₂ (g) + 2 Mn(OH)₂ (s) + 12 KOH (aq) Given: MW of K₂C₂O₄ = 166.2 g/mol MW of KMnO₄ = 158.04 g/mol Question: How many grams of KMnO₄...

Understanding the equivalence point and half-equivalence point is essential for acid–base titration questions on the DAT and OAT. In this short video, Dr. Jim Romano walks through how to identify and calculate both points, explains what they represent on a titration curve, and highlights...

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This short video breaks down a DAT Gas Law challenge problem that looks easy on the surface but catches many students off guard on test day. Dr. Jim Romano walks through the setup, strategy, and common mistakes students make with gas law questions under time pressure. Watch here: Gas law...

I have noticed that Chad's videos on his free website are too long and there is so many of them...whereas on DAT coursesaver there's fewer videos... and then there is chemistryprep.com which is chad's videos with paid subscription.... which would help me out more with studying for ochem and...

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