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By: Anthony Copeland & Chakilra Styles
Thank you!
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?
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.
How many molecules are there in 122 grams of NO2?
Gram To Atom
KWBAT: Successfully complete Gram to Atom, Mol to Gram, and Mol to Atom conversions.
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.