The formula for Density is:
d=m/v
The conversion between Density and Moles is a two step process.
Example:
How many moles are in a 25.0mL sample of Iron if the density of Iron is 7.87g/mL
Step 1: Convert from Density to Mass using the equation.
25.0mL x 7.87g/1mL = 197g
Step 2: Convert from Mass to Moles using Molar Mass
197g x 1mol/55.8g = 3.53mol
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