Calculate the density of aluminum if 27.6 cm3 has a mass of 74.6 g.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?