How many liters of salt solution would be needed to provide 40.0 grams of salt if the concentration of the solution is 46.0 g/L? Don't forget your units.

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Tell me the iupac name of the following compounds: