Q: A sample thought to be pure lead occupies a volume of 15.0 mi.and has a mass of 160.0g.determine the density and is the sample pure lead?

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1.639g/cm3

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To find density you take mass/volume.

divide mass by volume to get density.

Density = mass/volume, So, Density = 57g/29cm3 = 2.0g/cm3* The number on the calculator is 1.965517241, which is rounded to 2.0 because of significant figures.

Divide 84.7 by 49.6 to get grams per cc.

divide mass by volume.Density is 1552.46kgm^-3

d=m/v 84.7/49.6=1.7g/cm3

A sample of gas occupies 17 mL at -112 C. The volume the sample occupies at 70 Celsius is 36ml.

density = mass / volume = 62g / 21.9 cm³ ≈ 2.8 g/cm³

Density = (mass of a sample) divided by (volume of the sample).

You would take a sample, and calculate the density of the sample.

Density of a substance = (mass of a sample of it)/(volume of the same sample)

Specific gravity= density of sample/ density of water 1.030/1.00= 1.03

Mass and volume are extensive properties, which are dependent upon the size of the sample. A larger sample will have a greater mass and volume than a smaller sample. Density is an intensive property, which does not depend on the size of the sample. Density is a ratio of mass to volume, which does not vary with the size of the sample. The density of a larger sample will be the same as the density of a smaller sample.

about 36 mL

Q3. Do you think that each sample occupies space? Write the reason(s) for your answer.

The density of the gas sample that is heated the density decreases. Cohesive forces in matter are related to potential energy from particle attractions.

36 ml

That's the density of the sample.

That's the density of the sample.

Weight is not involved in density.Density is defined as (mass of a sample or object) divided by (volume of the same sample).

The density of the sample is about 2.14 g/mL

Density of a substance = (mass of a sample of the substance) divided by (volume of the same sample)

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