The density of the substance is denoted by the symbol ρ or D. The mass of the ethanol sample with a density of 0.789 g/ml in 150 mL at 20°C will be 118.35 g.
What is the relationship between density and mass?
The density of the object has been defined by the mass divided by the unit of volume and shows the direct relationship between mass and density. A heavier object has more density as compared to a lighter object.
The formula for density is given as,
Density = mass ÷ volume
or Mass = density × volume
Given,
Density = 0.789 gm/mL
Volume = 150 mL
Mass is calculated by substituting values in the above formula as,
Mass = density × volume
Mass = 0.789 gm/mL × 150 mL
Mass = 118.35 g
Therefore, a 150.0 mL ethanol at a temperature 20°C with a density of 0.789 gm/mL has a mass of 118.35 g.
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