What is stoichiometry and why is it important?
Given a chemical reaction, stoichiometry tells us what quantity of each reactant we need in order to get enough of our desired product. Because of its real-life applications in chemical engineering as well as research, stoichiometry is one of the most important and fundamental topics in chemistry.
How do you calculate the moles of a compound?
Divide the mass of the compound in grams by the molar mass you just calculated. The answer is the number of moles of that mass of compound. For example, 25 grams of water equals 25/18.016 or 1.39 moles.
What is stoichiometry in chemistry?
Stoichiometry is exactly that. It is the quantitative relation between the number of moles (and therefore mass) of various products and reactants in a chemical reaction. Chemical reactions must be balanced, or in other words, must have the same number of various atoms in the products as in the reactants.
How many molecules are in a mole?
The mole is represented by Avogadro’s number, which is 6.022×1023 atoms or molecules per mol.
How many moles are in a chemical equation?
The relative numbers of moles (called the stoichiometry) is given by the numbers in front of the chemical formulae in the equation – the numbers used to balance the equation. this equation reads “four moles of sodium react with one mole of oxygen to produce 2 moles of sodium oxide”.