1. The problem statement, all variables and given/known data so let's say that we have a solution S=0.4±0.01/250ml i want to do a dilution so i pick 5ml and pour it into 100ml beaker how should i calculate precision of the solution (mathematically or with some other equations)? 2. Relevant equations so basically we have F=5*S/100 3. The attempt at a solution for me 5*S/100=8*10^-5±2*10^-6 is this true because it doesn't seem right for me (about the pricision)?