Describe how to make 750.0 mL of 0.1667 M NH4C2H3O2 from 0.225 M NH4C2H3O2?

Answer 1

dilution formula

Answer 2

and with this one I did

0.1667(750.0)=0.225(v)
125.025/0.225=555.7??

Answer 3

That's what I obtained. So you take 555.7 (that may be too many significant figures) of the 0.225M stuff and add H2O to 750 mL.