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1. Intro to General Chemistry

Density of Geometric Objects

1. Intro to General Chemistry

Density of Geometric Objects

Multiple Choice
A block of metal has a width of 3.2 cm, a length of 17.1 cm, and a height of 4.3 cm. Its mass is 1.1 kg. Calculate the density of the metal in g/cm³.
Multiple Choice
A copper wire (density = 8.96 g/cm³) has a diameter of 0.32 mm. If a sample of this copper wire has a mass of 21.7 g, how long is the wire?
Multiple Choice
If the density of a certain spherical atomic nucleus is 1.0 x 10¹⁴ g/cm³ and its mass is 3.5 x 10^-23 g, what is the radius in angstroms? (Å= 10⁻¹⁰ m)
Multiple Choice
The two objects shown below have the same mass. Which has the largest density?
Multiple Choice
Chromium crystallizes in a body-centered cubic structure with an atomic radius of 125 pm. Given that the atomic mass of chromium is 51.9961 g/mol, estimate the density of Cr metal in g/cm³.
Multiple Choice
Iron crystallizes with a body-centered cubic unit cell. The radius of an iron atom is 126 pm. Calculate the density of solid crystalline iron in grams per cubic centimeter.
Multiple Choice
Given that the density of an unknown metal is 8.94 g/cm³, its atomic radius is 0.126 nm, and it has a face-centered cubic lattice, what is the molar mass of the metal?
Multiple Choice
Palladium crystallizes with a face-centered cubic unit cell. The edge length of palladium is 390 pm, and the molar mass of palladium is 106.42 g/mol. What is the density of palladium in g/cm³?