how do you do STOICHIOMETRY?
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http://www.learnchem.net/tutorials/stoich.shtml
Well there's different things you do in Stoichiometry, so it all depends. Stoichiometry is Balancing Equations, Knowing the Mole Ratios, Mole to Mole, Mole to Mass, and Mass to Mass Conversions.
it tells us about the mols of reactant and product in balance chemical reaction
Stoichiometry is a branch of chemistry that deals with calculating the quantities of reactants and products involved in a chemical reaction. It helps in determining the amounts of substances that are consumed or produced in a reaction.
To perform stoichiometry, follow these steps:
1. Write a balanced chemical equation: Start by writing a chemical equation that represents the given reaction. Make sure it is balanced, meaning that the number of atoms of each element is the same on both sides.
2. Convert known quantities to moles: Identify the substances whose quantities are given or known. Convert these quantities to moles using the molar mass of each substance. The molar mass is the mass of one mole of a substance, expressed in grams.
3. Apply the mole ratio: Using the balanced equation, determine the mole ratio between the known and unknown substances. The mole ratio is derived from the coefficients of the balanced equation.
4. Calculate the unknown quantity: Multiply the known quantity in moles by the mole ratio to determine the number of moles of the unknown substance.
5. Convert moles to desired units: If necessary, convert the moles of the unknown substance to a different unit, such as grams or liters, based on the desired information.
6. Perform additional calculations: If the question asks for other information, such as the mass of a different substance or the volume of a gas, you may need to perform additional calculations based on stoichiometry principles.
By following these steps, you can perform stoichiometry and determine the quantities of substances involved in a chemical reaction.