Stoichiometry Worksheet printable pdf download

Stoichiometry Worksheet

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Video 8.1 – Intro to Stoichiometry

What is stoichiometry? - Predicting quantities in a chemical reaction.

You can predict the number of moles, grams, Liters of something in a chemical reaction.

Let’s say you had a reaction: A + B  C

5.0g

And you knew you had 5.0 g of A.

What can stoichiometry do for you?

how

many

much

-It could tell you how many grams of B will be needed to react with it.

-It could tell you how many grams of C will be produced from the chemical reaction.

mole ratio conversions.

We want to introduce a new concept called

We’ve already done some of the conversions in unit 6 like:

*But before we can do mole ratios, we must always start with a balanced equation!

We mentioned it briefly in the last unit, but…

A + 2B + C  D

The coefficient tells you how many moles of the substance are in the reaction.

It’s kind of like a recipe on how to make substance “D”

Remember if there is no coefficient in

A + 2B + C  D

Let’s take the fictional balanced equation of

front of the compound, the

coefficient is 1

So we could say…

- So you can do mole ratios with any two things in the equation!

 2NH

+ N

I could write a mole ratio of…

When doing stoichiometry you MUST ALWAYS HAVE:

The number

The unit (mol)

The chemical symbol

Stoichiometry Worksheet