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Introduction To Moles

By: Anthony Copeland & Chakilra Styles

GOAL!

Thank you!

Grams To Mols

Step 1: Write the given.

Step 2: Find the molar mass

Step 3: Set up one step railroad track.

Step 4: Solve.

Step 5: Write final answer and don't forget units.

Examples:

How many moles are there in 24.0 grams of FeF3?

Avogadro's Number

6.02 × 10^23

Definition: Avogadro’s number, number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.022140857 × 10^23.

Examples:

How many molecules are there in 122 grams of NO2?

Introduction

Gram To Atom

KWBAT: Successfully complete Gram to Atom, Mol to Gram, and Mol to Atom conversions.

Definitions

Essential Question: What is Dimensional Analysis?

Examples:

How many moles are there in 2.00 x 10^19 molecules of CCl4?

Mol To Atom

Step 1: Write your givens.

Step 2: Find molar mass.

Step 3: Set up railroad track.

Step 4: Cancel units.

Step 5: Solve.

Step 6: Write final answer, dont forget units.

Step 1: Write your given.

Step 2: Find molar mass.

Step 3: Create 2-step railroad track.

Step 4: Cancel out units.

Step 5: Solve.

Step 6: Write final answer and don't forget your units.

Moles: Mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.

Atoms: the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.

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