# Stoichiometry with Acid and Base Dissociation

Acid - Base Equilibria | Common Ion Effect & Percent Dissociation.

Tip: This isn't the place to ask a question because the teacher can't reply.

1 of 4 videos by Dr. Hayek

## Key Questions

Watch these videos!

#### Explanation:

Since the question is very general and pages could be written to answer this question, I would like to recommend the following videos on different Acid-Base Titration examples.

Acid - Base Equilibria | Strong Acid - Strong Base Titration.

Acid - Base Equilibria | Weak Acid - Strong Base Titration.

• A very basic intro to stoich...

video from: Noel Pauller

Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass of the products.

C${H}_{4}$ + 2${O}_{2}$ -----> C${O}_{2}$ + 2 ${H}_{2}$O

Here, one molecule of methane reacts with two molecules of oxygen gas to yield one molecule of carbon dioxide and two molecules water. Stoichiometry measures these quantitative relationships, and is used to determine the amount of products/reactants that are produced/needed in a given reaction.

as per the equation 1 mole of Methane , reacts with 2 moles of Oxygen to produce 1 mole of Carbon dioxide and 2 moles of Water.

if we double the amount of Methane and Oxygen to 2 moles and 4 moles respectively , the amount of carbon dioxide ad water we will get also get doubled up.

How many moles of chlorine gas ($C {l}_{2}$) would react with 5 moles of sodium (Na) according to the following chemical equation? (Balance equation.) 2Na + $C {l}_{2}$ -----> 2NaCl

(b) Using the equation (after it is balanced) above, determine the amount of product that can be produced from 24.7 g Na.

As per the equation 2 moles of sodium produces one mole of $C {l}_{2}$ , so the amount of $C {l}_{2}$ required is one half the amount of Sodium , Na.
If we start with 5 moles of Na , we will need 5 / 2 moles or 2.5 moles of $C {l}_{2}$.

(b) As per the equation 2 moles of sodium ( mass 46 g) produces two moles of NaCl (116.8g)
we can say 46 g of Na on reaction with sufficient amount of Chlorine produces 116.8 g of NaCl.

1 g of Na on reaction produces (116.8 / 46 ) g of NaCl

24.7 g of Na on reaction will produce ( 116.8 / 46 ) x 24.7 g of NaCl

62 g of NaCl.

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