ChemCafe — science, chemistry and physics made simple – Page 4 of 45 – Chem Cafe is a place to share and discuss new scientific research. Read about the latest advances in chemistry, physics, astronomy, biology, medicine, social science, and more. Find and submit new publications and popular science coverage of current research.

Posted inin Inorganic Chemistry

Carboxylic Acid or Alcohol? Identifying IR Spectrum Features for Accurate Analysis

Posted byby Franklin Veaux
17 hours ago
0 Comments
2 min

Carboxylic Acid or Alcohol? Interpreting the IR Spectrum The absence of the carbonyl (C=O) stretch around 1700 cm-1 strongly indicates that the compound is not a carboxylic acid; instead, the...

Posted inin Chemistry

The Rise and Fall of Bakelite: A Journey Through Its History and Current Relevance

Posted byby Franklin Veaux
17 hours ago
0 Comments
6 min

What Happened to Bakelite? Bakelite, the first synthetic plastic invented in 1907, declined in use due to its brittleness, toxicity, high production cost, and the rise of superior plastics like...

Posted inin Inorganic Chemistry

Protonated Acetone: Understanding Resonance Structures and Octet Satisfaction

Posted byby Franklin Veaux
17 hours ago
0 Comments
5 min

Does Protonated Acetone Have Resonance Structures? Protonated acetone generally does not exhibit resonance structures when protonation occurs on the oxygen atom, as the carbonyl carbon maintains a full octet and...

Posted inin Inorganic Chemistry

Identify Axial or Equatorial Positions in Chair Conformations: A Simple Guide

Posted byby Franklin Veaux
18 hours ago
0 Comments
5 min

How to Determine If a Substituent Is Axial or Equatorial You can identify whether a substituent on a cyclohexane chair conformation is axial or equatorial by analyzing its orientation relative...

Posted inin Inorganic Chemistry

Where to Find a PDF of the ACS Organic Chemistry Exam Prep Book Online

Posted byby Franklin Veaux
18 hours ago
0 Comments
2 min

Where Can I Find a PDF of the ACS Organic Chemistry Exam Prep Book? A direct, freely available PDF of the ACS Organic Chemistry Exam Prep Book is not provided...

Posted inin Chemistry

Do Air Sprays Sanitize the Air or Are They Just Scented Fresheners?

Posted byby Franklin Veaux
19 hours ago
0 Comments
3 min

Do Chemicals in Air Sprays Actually Sanitize the Air or Are They Just Air Fresheners? The chemicals in these sprays, such as triethylene glycol and propylene glycol, provide mild antimicrobial...

Posted inin Chemistry

La Croix Limoncello: Key Insights on Flavor, Ingredients, and Consumer Perception

Posted byby Franklin Veaux
19 hours ago
0 Comments
2 min

Understanding La Croix Limoncello La Croix Limoncello is a natural, sparkling water beverage flavored with lemon juice and vanilla extract, designed to offer a citrusy taste with a subtle creamy...

Posted inin Chemistry

Periodic Tables with Real Elements: Challenges and Key Insights

Posted byby Franklin Veaux
19 hours ago
0 Comments
3 min

Periodic Tables Featuring Real Elements: Challenges and Insights Periodic tables showcasing real elements are rare, complex projects that face multiple challenges. They involve acquiring actual samples of chemical elements, not...

Posted inin Chemistry

Which Type of Reactions Are Faster: SN1 or SN2? Key Factors and Implications

Posted byby Franklin Veaux
20 hours ago
0 Comments
2 min

Which Type of Reaction is Faster: SN1 or SN2? Why? The speed comparison between SN1 and SN2 reactions depends on the reaction conditions and substrate; neither is universally faster. Several...

Posted inin Inorganic Chemistry

Understanding Amines and the Differences in pKa Values of Nitrogen-Bound Protons

Posted byby Franklin Veaux
21 hours ago
0 Comments
2 min

What is an Amine and How Do the pKas of Nitrogen-Bound Protons Differ? An amine is an organic compound featuring a nitrogen atom bonded to one or more alkyl or...