The Mole Calculator

The Mole Calculator (By: Meghan O'Connell)
Another unit conversion

This is what a mole calculator looks like:

* Molecules -> atoms
times(x) by the # of Particles
* Atoms -> Molecules
Times(x) by the # of Particles

Periodic Table
http://www.ptable.com/

These videos might help you out:

Helpful information: Avogadro's number = 6.0221415 × 10²³

Example:

1) How many moles are in 22 grams of copper metal?

In all problems like this, you need to go through four steps to find a solution.

The Four Steps to Solving Mole Problems:

Step 1: Figure out how many parts your calculation will have by using the diagram

We need to use the atomic mass of copper as the conversion factor.

Step 2: Make a T-chart, and put whatever information the problem gave you in the top left (22 grams Cu). After that, put the units of whatever you were given in the bottom right of the T chart (grams Cu). Put the units of what you want to find in the top right (moles Cu).

Step 3: Put the conversion factors into the T-chart in front of the units on the right (63.5 grams Cu). Since w are useing grams, the conversion factor is teh atomic mass of Copper (Cu).

Step 4: Cancel out the units that match from the top left and bottom right, then find the answer by multiplying all the stuff on the top together and dividing it by the stuff on the bottom. (Don't for get to use () on your calculator)

Here you multiply 22 by one and divide the result by 63.5. Your answer, 0.35 moles of copper:

Links for more help:

These following links will all provide attitional information on the mole and how to calculate it. They will also provide different techniques on how to use the mole calculator!!!