Chemistry ch 8
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SI unit for the amount of substance in a given example.
Moles are equal to the amount of substance that contains as many particles as
The number of particals (atoms) in a mole of any element
Molar mass is measured in
Molecular mass is measured in
- The mass of one mole of a pure substance
- (Atomic weight)
Most reactions take place in
Describes the concentration of a solution
- Moles of solute//dm^3 of solvent
- Or Moles//Liters
Percent compisition of a compound gives the
Relative amount of each element present
Percent compisition stepls
- 1. Calculate the molar mass of each element
- 2. Calculate the formula mass for the compound
- 3. Divide the mass of each element by the total
- 4. Multiply by 100
The simplest whole-number ratio of different atoms in a compound
Moles in a compound are in
simple, whole number ratios
Crystalline compounds (solids) in which ions or molecules of the compounds attach to one or more water molecules.
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