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26 Cards in this Set
- Front
- Back
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Molar volume
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The volume occupied by one mole of an ideal gas under standard conditions; 22.4liters.
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Molar mass
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the sum of all of the atomic masses in a formula
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Atomic mass
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The average mass of all nuclides of an element determined by the proportions in which each nuclide of the element are present within the earth and its atmosphere.
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Mole
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s the basic unit of measurement in chemistry
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avogadro's number
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6.02 times 10 to the 23
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percent composition
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The mass percent of each element in a compound.
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Standard temp and pressure
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temperature is 0°C or 273 K
pressure is 1 atmosphere or 760 mmHg or 760 torr One mole of any gas occupies 22.4 L of volume (molar volume) |
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empirical formula
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The simplest ratio of the atoms present in a molecule.
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product
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A substance on the right side of a chemical reaction.
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reactant
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A substance on the left side of a chemical reaction.
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chemical equation
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Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.
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balanced equation
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has equal numbers of atoms on each side of the equation.
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skeleton equation
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quation that identifies the reactants and products in a chemical reaction by their chemical formula but does not quantify them.
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single replacement
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A + BC → AC + B
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combustion
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he sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species.
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decomposition
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A reaction where a single compound breaks down into simpler compounds.
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actual yield
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Amount of a specified pure product actually obtained from a given reaction.
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percent yield
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actual masss / predicted mass times 100
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theoretical yield
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Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.
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excess reactant
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The reactant in a chemical reaction that remains when a reaction stops when the limiting reactant is completely consumed.
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stoichiometry
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a branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions
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boyle's law
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p * V = constant
p= pressure v= volume |
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charle's law
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v1/t1 = v2/t2
v=volume t= temp |
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daltons law
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the total pressure exerted by a gaseous mixture is equal to the sum of the partial pressures of each individual component in a gas mixture.
p total= p1 + p2 +...pn |
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gay-lusac's law
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p/t = k
p= pressure t= temp k= constant |
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ideal gas law
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PV=nRT
p= presure v=volume r= gas constant n= amount of subatsance |
