Which combination of units expresses density?
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The definition of density is the amount in a given volume.
Volume = Mass/Density.So, if you know the density in terms of pounds per barrel, simply divide the mass by the density. If not, eitheruse dimensional analysis to convert the density from the given units to pounds per barrel, orcalculate the volume in the units used for the density and then conversion to barrels.
V = M/D, where V is the volume, M is the mass, and D is the density. Density is mass per unit volume. Be certain to use a consistent set of units. The common units for density are kg/m3 and g/cm3. Hello I'm Bob
nCr = nPr/r!
That would be (5.8)/150 mass units per mL or 0.0386666 mass units per mL