ChemCafe — science, chemistry and physics made simple – Page 12 of 272 – 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

Best Ways to Prevent Bumping on Rotovap: Key Steps for Safe and Effective Evaporation

Posted byby Franklin Veaux
3 days ago
0 Comments
2 min

Best Ways to Prevent Bumping on Rotovap Bumping on a rotary evaporator (rotovap) primarily occurs due to rapid boiling and vapor bubbles forming unpredictably. The best way to prevent bumping...

Posted inin Chemistry

What Jobs Use Titration in Quality Control, Chemistry, and Industrial Applications

Posted byby Franklin Veaux
3 days ago
0 Comments
3 min

What Jobs Use Titration? Titration is widely used across multiple fields for chemical analysis, quality control, and process optimization. Jobs involving titration range from industrial manufacturing to environmental monitoring, pharmaceuticals,...

Posted inin Chemistry

Is Glass an Amorphous Solid or a Super-Critical Liquid? Understanding Its Nature and Properties

Posted byby Franklin Veaux
3 days ago
0 Comments
3 min

Is Glass an Amorphous Solid or Super-Critical Liquid? Glass is best described as an amorphous solid rather than a super-critical liquid. This classification arises because glass maintains a solid state...

Posted inin Inorganic Chemistry

Why Atoms Prefer sp3 Hybridization for Stability and Reactivity

Posted byby Franklin Veaux
3 days ago
0 Comments
2 min

Why Do Atoms Want to Be sp3 Hybridized? Atoms prefer sp3 hybridization because it lowers their energy by forming fully hybridized orbitals without high-energy, unhybridized p orbitals, resulting in greater...

Posted inin Chemistry

Favorite Chemistry Jokes and Their Meanings: Humor That Makes Science Fun

Posted byby Franklin Veaux
3 days ago
0 Comments
4 min

Favorite Chemistry Jokes and Their Meanings Chemistry jokes combine scientific concepts with humor, delighting those familiar with the subject. Here are some favorites, each explained to clarify the scientific play...

Posted inin Chemistry

Meaning of 81/35 in Chemistry and the Origin of the Number 35

Posted byby Franklin Veaux
4 days ago
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2 min

Understanding the Meaning of 81/35 in Chemistry The “81/35” notation identifies a specific isotope of the element Bromine, where “35” represents its atomic number, indicating the number of protons, and...

Posted inin Chemistry

Chemistry Jobs with TS Clearance: Agencies, Requirements, and Career Paths

Posted byby Franklin Veaux
4 days ago
0 Comments
3 min

Chemistry Jobs with a TS Clearance Chemistry jobs requiring a Top Secret (TS) clearance primarily exist within government agencies and defense contractors engaged in sensitive research, development, and manufacturing. Such...

Posted inin Chemistry

Cooking Oils for Metal and Plastic Lubrication: Which Ones Work Best?

Posted byby Franklin Veaux
4 days ago
0 Comments
6 min

Which Cooking Oil Is Suitable for Lubricating Metal and Plastic? Food-grade mineral oil and certain cooking oils like almond oil are suitable for lubricating metal and plastic, considering safety, effectiveness,...

Posted inin Chemistry

Cautionary Case of Lye and Hydrogen Peroxide: A Lesson for DIY Chemists on Safety Risks

Posted byby Franklin Veaux
4 days ago
0 Comments
4 min

DIY Chemists – An Extreme, But Cautionary Case of Mixing Lye and Hydrogen Peroxide Mixing sodium hydroxide (lye) and hydrogen peroxide can cause severe, potentially fatal chemical burns due to...

Posted inin Chemistry

Where to Locate Past ACS Organic Chemistry Exams and Study Resources

Posted byby Franklin Veaux
4 days ago
0 Comments
4 min

Where Can I Find Past ACS Organic Chemistry Exams? Past ACS Organic Chemistry exams are not publicly available because they are controlled and proprietary tests. The American Chemical Society (ACS)...