[trishasales714]

I'd like to make a 1x 10^-1 M solution of a compound in water. The compound that I'm going to use has a molar mass of 32.45 g/mol. I calculated the amount of compound I need to be 3.245 g. So I'll add this to 996.755 g of water (since molarity is moles solute over liter solution not solvent). Is this correct? Or should it be added to 1L water?

[AWK]

This gives you mass of solution. Its volume may be different from 1 L.
Just dissolve  compound and add enough water to volume of 1 L.