CHEM 210 Chapter Notes - Chapter 6: Molecular Mass, Stoichiometry, Formula Unit

• School: NIU
• Department: Chemistry and Biochemistry
• Course: CHEM 210
• Professor: Fotovat

Document Summary

States of substances- gas (g), liquid (l), solid (s), in aqueous solution (aq) Coefficients- to balance the equation to follow the law of conservation of mass. You must use coefficients to balance a chemical reaction. Steps to take: write correct chemical formulas, balance atoms using coefficients, formulas cannot be changed, reduce coefficients to smallest whole number ratio, dividing by common divisor, make sure all atoms balance. Molecular weight- sum of atomic weights of all atoms in a molecule. Formula weight- sum of atomic weights of all atoms in a formula unit of any compound, molecular or ionic.