What are some examples of stoichiometry in chemistry?

What are some examples of stoichiometry in chemistry?

Stoichiometry involves calculating the amounts of reactants and products in chemical reactions. For example, in the reaction of hydrogen and oxygen to form water, 2H₂ + O₂ → 2H₂O, the stoichiometric coefficients tell us that 2 moles of hydrogen react with 1 mole of oxygen to produce 2 moles of water.

Can you give me another example?

Sure! Consider the combustion of propane: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O. Here, 1 mole of propane reacts with 5 moles of oxygen to produce 3 moles of carbon dioxide and 4 moles of water.

How do I calculate the moles of a substance?

To calculate moles, use the formula: moles = mass (g) / molar mass (g/mol). For example, if you have 18 grams of water, the molar mass of water is 18 g/mol, so you have 1 mole of water.

What is the importance of stoichiometry in real life?

Stoichiometry is crucial in various fields, including pharmaceuticals for drug formulation, environmental science for pollution control, and food science for recipe adjustments.