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CHEM 217 Chemical Principles I – midterm prep study guide 2024 Athabasca University
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CHEM 217 Chemical Principles I – midterm prep study guide 2024 Athabasca University
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CHEM 217 Chemical Principles I – midterm prepstudy guide 2024 Athabasca University
, CHEM 217 Chemical Principles I – midterm prep study guide 2024 Athabasca University
Calculation of density given mass and volume - --d=m/v
Calculation of percent error - --
Define homogeneous mixture - --- evenly distributed mixtures, uniform properties throughou
Define heterogeneous mixture - --It is not uniform in composition and properties.
Calculation of percent recovery - --(collected mass/starting mass)*100
Balanced chemical equation for reaction of magnesium and oxygen for experiment 4 - --MgO
Empirical formula v Molecular Formula - --Molecular formulas tell you how many atoms of each element
are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a
compound.
Go from grams to moles - --divide grams by molar mass
Go from moles to grams - --moles x molar mass
Convert g/l to g/mL - --multiply by 1000
Calculate molecular formula from a empirical formula - --First, use the molar mass and the empirical
formula molar mass to determine n, the number you must multiply the empirical formula by; Second,
multiply the coefficients in the empirical formula by n to find molecular formula.
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