i don't have the program for that calculator, but how do you determine the amount of oil needed for making a solution that is 50ml @ 400mg/ml?
and give me the formula for this as well. please. thanx.
*ex.) total amount of something divided or added or something equals the oil.
i know this sounds kinda dumb and hey mabye it is..but had to ask that b/c i don't have excel. hope you understand this pplz.