(Solved): A sample of Potassium is composed on the following mixture. Determine the weighted average (in amu) ...

A sample of Potassium is composed on the following mixture. Determine the weighted average (in amu) of Potassium in this particular sample of. Do not type units into your answer. Isotope Mass (amu) Percent Abundance Potassium - 39 38.96370 78.500 Potassium 41 40.96183 21.500