Conservation of Mass Chemistry Example 1

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Example 1

easy
If 1010 g of hydrogen reacts with 8080 g of oxygen to form water, what is the total mass of water produced?

Solution

  1. 1
    State the law of conservation of mass: in a chemical reaction, mass is neither created nor destroyed.
  2. 2
    Add up the masses of all reactants: 10 g+80 g=90 g10\,\text{g} + 80\,\text{g} = 90\,\text{g}.
  3. 3
    By conservation of mass, the total mass of products must also equal 90 g90\,\text{g}.

Answer

90 g of water90\,\text{g of water}
Antoine Lavoisier established that in any chemical reaction, the total mass of the reactants equals the total mass of the products. This fundamental law underpins all of stoichiometry.

About Conservation of Mass

A fundamental law stating that in any chemical reaction, the total mass of all reactants exactly equals the total mass of all products, because atoms.

Learn more about Conservation of Mass →

More Conservation of Mass Examples

Example 2 medium

In a sealed container, [formula] g of calcium carbonate decomposes: [formula]. If [formula] g of CaO

Example 3 easy

A student burns [formula] g of magnesium in air and obtains [formula] g of magnesium oxide. How much

Example 4 easy

If 12 g of magnesium reacts with oxygen to form 20 g of magnesium oxide in a closed container, how m

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