RE: What does an &quot;ad hoc&quot; job mean? I went to an interview yesterday for a salesperson and the interviewer said that the role was an ad hoc role.I should have asked what it meant (because it wasn&#39;t in the job description when I applied) but I didn&#39;t want to seem like I didn&#39;t know what I was doing so I didn&#39;t...E: What does an &quot;ad hoc&quot; job mean? I went to an interview yesterday for a salesperson and the interviewer said that the role was an ad hoc role.
pH - (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);
A substance that is neither acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7, such as pure water is neutral. A pH less than 7 is acidic and greater than 7 is basic. Each whole pH value below 7 is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 x 10) more acidic than a pH of 6.