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Density is a common physical property of substances that can give insight into the structure of the substance on the atom or molecular level. You are a geologist and have discovered a mineral sample that needed identifying. The first method of choice is the density of the sample. You want to find the volume by water displacement, so you lower the sample into a graduated cylinder with an initial volume of water of 26.90 mL. The volume of water rises to 43.70 mL. You also mass the sample and determine it to be 25.10 g. From this information determine the density of the mineral sample. Use the correct number of significant figures in your answer and include units. Your Answer: Answer units



Answer :

The density of the mineral sample is 1.494g/mL

Density is the mass of matter per unit volume. Density is a standard mechanical quantity. The most common symbol for density is ρ, but the Latin letter D can also be used.

Formula

ρ     =[tex]{\frac {m}{V}}[/tex]

ρ = density

m = mass

V = volume

Mass of the sample = 25.10 g

Volume of the sample = volume of water displaced by the sample

                             = (43.70 - 26.90) mL

                              = 16.80 mL

Density = mass / volume

            = 25.10 g / 16.80 mL

            = 1.045 g/mL

Hence, the density of the mineral sample = 1.494 g/mL

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