What is the density of a solid a mass of 3.60g and a volume of 1.8 cubic centimeters? *

Density is ratio of mass and volume.

therefore Density is equal to mass/ volume

but mass =3.60gand volume =1.8cm3

therefore density is equal to 3.60/1.8

density = 2.0gcm3

Explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.