CliffsAP Chemistry
Chapter One
Gravimetrics
Key Terms
Words that can be used as topics in essays:
accuracy
atomic theory
density
empirical formula
extensive property
fractional crystallization
heterogeneous
homogeneous
intensive property
isotopes
law of conservation of mass and energy
law of definite proportions
(law of constant composition)
limiting reactant
mixture
molecular formula
percentage yield
precision
random error
systematic error
theoretical yield
uncertainty
Key Concepts
Equations and relationships that you need to know:
1 nm = 1 x [l0.sup.-9] m = 10 Å
1 [cm.sup.3] = 1 mL
°F = 1.8(°C) + 32
K = °C + 273.16
density = mass/volume
Avogadro's number = 6.02 x [10.sup.23] = 1 mole
number of moles = mass/molecular weight
molecular weight of ideal gas = density x molar volume
% yield = actual yield/theoretical yield x 100%
% composition = mass of element in compound/mass of compound x 100%
% ... read full excerpt from CliffsAP Chemistry, 3rd Edition ebook
