If that&#x27;s true, those potato chips should be made with a lot <i>more</i> sodium. (Or, you know, some more sodium and less potassium. I don&#x27;t think people would eat the &quot;now with 62% more table salt&quot; version of the chips.)<p>Wikipedia says: an ion pump exchanges 3 sodium ions for 2 potassium ions. ( <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sodium" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sodium</a> )<p>3 sodium ions is 69 atomic mass units. 2 potassiums is 78.2 atomic mass units.