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One Mole Carbon Block

One Mole Carbon Block

9 total reviews

  • As seen on @physicsfun

Introducing our meticulously crafted 1 mole block of elemental carbon—a physical manifestation of the standardized unit of measure of a mole.

Dimensions: 1 x 1 x ~0.4” (25.4 x 25.4 x ~10.3 mm)
Mass: 12.011 g (± 0.08%)


What is a Mole?
A mole is a unit of measurement in chemistry used to express amounts of a chemical substance. It's defined as the amount containing as many entities (atoms, molecules, etc.) as there are atoms in 12 grams of pure Carbon-12. This quantity is known as Avogadro's number, 6.022 x 10²³.

Why 12.01 grams?
You might wonder why our block weighs 12.01 grams instead of the 12.00 grams one would expect from a mole of pure Carbon-12. This discrepancy arises from the presence of heavier isotopes in natural carbon. Unlike pure Carbon-12, which is tedious and expensive to isolate, natural elemental carbon includes traces of Carbon-13 and other isotopes. These contribute an additional 0.01 grams to the mass, offering an authentic representation of carbon as found in nature.

Our 1 mole block of elemental carbon is not just a curio—it's a tactile expression of fundamental scientific concepts, a conversation starter, and a thoughtful gift for anyone intrigued by the wonders of chemistry. Hold a mole in your hands, ponder the universe's intricacies, and add a touch of scientific intrigue to your life today!

  • Precisely Measured
  • Display Capsule
  • Laser-Etched Information

Regular price $15.00
Regular price Sale price $15.00
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Collections containing this item:
Chemistry | Element Samples | Equipment | Physicsfun | Tools & Trinkets |


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Customer Reviews

Based on 9 reviews
P.B. (Victoria, Australia)

Very good product

Anonymous (Ontario, Canada)
Perfect Gift!

Great packaging, speedy delivery. It's everything it claims to be!
One mole of Carbon.

G. (Virginia, United States)
Great unique gift

This is a great gift. Well made and good packaging. Even the boxed shipped in had a science quiz printed on the inside. We I’ll be back for more great stuff. Shipping was quick. Thanks…

J.S. (California, United States)
Perfect for a chemist

Buying a 1 mole block of carbon is a bit extravagant on one level. Anyone can measure out 12.01 grams of carbon. On the other hand, every chemist I showed it to thought it was delightful. My students thought it was cute, too.


A special gift for all your science, loving friends

T.D.J. (British Columbia, Canada)
Exactly as expected

It came as expected, with a hard plastic storage case.

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