Related questions


A reagent occasionally used in chemical synthesis is sodium–potassium alloy. (Alloys are mixtures of metals, and Na-K has the interesting property that it is a liquid.) One formulation of the alloy contains 67 atom percent K ; that is, out of every 100 atoms, 67 are K and 33 are Na. What is the mass percent of potassium in sodium–potassium alloy?