• Skip to main content
  • Skip to footer
Prepineer
  • Why Prepineer?
  • Personal coaching
  • How it works
  • Is it right for me?
  • What are others saying?
Start Your Free Trial
Prepineer
  • Call Us: + 1 855 624 1621
  • Live Chat: Click to Chat
  • Email: [email protected]
  • Twitter
  • Facebook
  • Instagram
  • YouTube
  • TikTok

PrepineerPrepineer

Prepineer is the world's largest destination for Engineering Students and professionals preparing to take the PE Exam and FE Exam using online study courses. Discover an online course on Prepineer.com and start your journey of becoming a Professional Engineer today!

  • 1-855-624-1621
  • Student Stories
  • Login
  • START FREE TRIAL

How do you find the number of moles of a substance

Daily Dose 007 | CHEMISTRY

How do you find the number of moles of a substance?

When hearing the word MOLE makes us think first of a little rascal that digs holes in the backyard, welp, there is some work that we need to do in getting prepared for the FE Exam.

And that’s OK, because moles – in the animal world – can be cute at times! πŸ™‚

In this video, we dive in to a FE Exam Practice Problem, this time in the subject of CHEMISTRY, specifically revolving around determining the NUMBER OF MOLES of a substance in a given sample.

Key Definition

What is a MOLE?

The MOLE is a unit of measurement used in CHEMISTRY.

It measures the amount of pure substances containing the same number of chemical units as there are atoms in exactly 12 grams of carbon-12.

However, we don’t use the 12 grams of carbon-12 much on the FE Exam, but rather, AVOGADRO’S NUMBER, which is:

  • 1 mol = 6.023e23 particles

Initially, the connotation of MOLE was “gram molecular weight”, however, the usage tends to apply the term MOLE to an amount containing Avogadro’s number of whatever units are being considered. For this reason, it is possible to have a MOLE of atoms, ions, radicals, electrons, particles, or quanta.

In the NCEES Reference Handbook, we see the units of PARTICLES used, but this can in the same way say ATOMS, IONS, etc.

Check out the video and see how we can go about solving this type of problem in the most efficient manner.

As always, with Love, Prepineer

Video Review

How to find the number of moles in a sample


What’s next?

Come Join with us around the social interwebs as we share unique resources, strategies, and materials to help you prepare for your upcoming FE Exam.

And of course, it’s FREE.99! πŸ™‚

CLICK EACH LINK TO JOIN OUR PARTY:
  • YOUTUBE
  • INSTAGRAM
  • FACEBOOK
  • SNAPCHAT
< Go back to the AIT Resource page
FE Exam Success

β€œThe FE Exam is massive and intimidating, but if I can give you some advice, start with Prepineer, it will get you to where you need to succeed.”

Michael DeVuono, PE | Senior Water Engineer, Arcadis

Preparing for the FE Exam doesn't have to be hard

Stop thinking about starting your FE Exam prep and get started today.

Prepineer was built from the trenches with students just like you...to help you get it done!

Start Your Free Trial
Prepineer
  • Call Us: + 1 855 624 1621
  • Live Chat: Click to Chat
  • Email: [email protected]
  • Twitter
  • Facebook
  • Instagram
  • YouTube
  • TikTok

Footer

About

  • Company
  • Join the Team
  • Internships
  • Schedule a Demo

Legal

  • Copyright
  • Terms of Use
  • Privacy Policy
  • Disclaimer

Helpful Links

  • FE Exam (The Ultimate Guide)
  • What is EIT Certification
  • How can Prepineer help me pass the FE Exam?
  • FE Exam Requirements by State
  • What is the FE Exam passing score?

Connect

  • Help & Support
  • Contact
  • Blog
  • Feedback

Copyright © 2023 · Prepineer LLC · Built with Hustle, and in the USA