6 months = 0.5 year
rate = 0,25 mol / 0.5 year = 0.5 mol/year or approx 0.042 mol/month
hope this helps!
sorry idk the answer well to you i have a explaination
explanation: a formula which shows the arrangement of atoms in the molecule of a compound
11 players on a field that has a maximum of 11 players