Hey guys, this is something I'm asking because I'm very finicky about measurements. I should be able to do this but I haven't done chemistry in a few years so my mind is blank. Say I have 30ml of 0mg nicotine and want to make it a 3mg solution. How much of 100mg/ml base nicotine would I need to add? Please keep in mind, the nicotine base contributes to the total volume, so it will not be 30ml in the end. I know this isn't a major deal, but it's bugging me that I can't calculate it when I should be able to.