Avogadro's Number In Scientific Notation
What Is A Mole?
This video covers what moles are, and how to create conversion factors for them. It also explains why your teacher is doing this 'moles thing' to you, which is a question I've heard from many a frustrated chem student. Trust me, there is a reason!
It is a name for a specific number of things. There are 12 things in a dozen, and 602 hexillion things in a mole. What are moles and why they are important? How to abbreviate the mole number (Avogadro's number) using scientific notation, and compare to see how giant this number is. Show Step-by-step Solutions. Example: In scientific notation, Avogadro's number is approximately 6.022141793 × 10 23. Apple watch app store. Matching this with the formal definition, a is the decimal 6.022141793 and k is the exponent 23. Avogadro's number Avogadro's number is the number of particles in one mole of any substance. Imac program. Its numerical value is 6.02225 × 1023. Spacy cheat sheet. One mole of oxygen gas contains 6.02 × 1023molecules of oxygen, while one mole of sodium chloride contains 6.02 × 1023sodium ions and 6.02 × 1023 chloride ions.
Converting Grams To Moles
Lots of great grams-to-moles and moles-to-grams action in this one. Moles are confusing at first, but once you see it's always a one-step problem, it gets nice and repetitive (and that's a good thing!). Also intriguing: what to do about molecules with crazy parentheses?
Avogadro's Number Chemistry Definition
Avogadro's Number (6.02 x 1023)
These mole problems get the most confusing when Avogadro's Number enters the mix: lots of scientific notation, calculators going crazy. This video will make Avogadro make sense for you, though, and it covers the common calculator mistake that's responsible for almost all of the errors students make in this type of problem.
Avogadro's Number In Scientific Notation
Converting Grams to Number of Atoms or Molecules
The hardest problems are the ones going from grams all the way to number of atoms or molecules. The big trick that helps the most students involves looking at it as a basic stepping stone problem with 'moles in the middle', as I'll show you in this video. Also covered: a few more advanced moles problems with funky wording to give you a taste of what's to come.