BJU Chemistry Ch 9 Word Scramble
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Term | Definition |
actual yield | The measured amount of product at the end of a reaction. It is normally expressed in grams of the product. |
Avogadro's number | A law of gas behavior stating that the volume of a gas, maintained at a constant temperature and pressure, is directly proportional to the number of moles of the gas. |
empirical formula | A formula that tells the types of atoms that are present in a compound and the simplest whole number ratio between the atoms. |
excess reactant | A reactant remaining unchanged at the end of a reaction because another reactant limited the yield of product. |
law of definite composition | A law stating that every compound is formed of elements combined in mass ratios that are unique for that compound. |
limiting reactant | A reactant that is used up first before the other reactants in a reaction, preventing more products from forming. |
molar mass | The mass of one mole of any pure substance. It is expressed in grams per mole (g/mol). |
mole | |
molecular formula | |
mole ratio | The ratio between the moles of one substance and the moles of another substance as indicated by the coefficients in a balanced equation; also the ratio between elements within a compound as indicated by the subscripts in a balanced equation. |
percent composition | A percentage that gives the relative amount (based on mass) of each element present in a compound. |
percent yield | The percentage of the theoretical yield that was actually produced. |
stoichiometry | The measurement and calculation of the mass and molar relationships between reactants and products in chemical reactions. |
structural formula | A formula that shows the types of atoms involved, the exact composition of a molecule, and the arrangement of chemical bonds. |
theoretical yield | The maximum amount of product that could be created from a given amount of reactant. It is normally expressed in grams of the product. |
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