Chem Final
Terms
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- Conservation of mass
- Mass is neither destroyed nor created during ordinary chemical or physical reactions
- Solute
- Substance dissolved in water
- Molality calculation
- Moles solute/mass of solvent[kg]
- Reaction Stoichiometry
- Involves the mass relationships between reactants and products in a chemical reaction
- Composition stoichiometry
- deals with the mass relationships of elements in compounds
- Unit of Molar Mass
- Mass of one mole of a pure substance; units of g/mol
- Limiting reactant
- The reactant that limits the amount of the other reactants that can combine and the amount of product that can form in a chemical reaction
- Avagadro's Number
- 6.022x10^23: Number of particles in exactly one mole of a pure substance
- Solvent
- dissolving medium in a solution
- Who came up with the law of conservation of mass, definate proportions, and multiple proportions
- John Dalton
- Saturated solution
- a solution that contains the maximum amount of dissolved water
- Solubility
- amount of a substance required to form a saturated solution with a specific amount of solvent at a specified temperature
- Molarity Calculation
- amount of solute/volume of solution
- Supersaturated solution
- a solution that contains more dissolved solute than saturated solution contains
- Excess Reactant
- The Substance that is not used up completely in a reaction
- what is a mole
- Amount of a substance that contains as many particles as there are atoms in exactly 12g of carbon-12
- solution
- a homogeneous mixture of two or more substances in a single phase