# What is the “coefficient of ionization” or “ionization coefficient”?

The question got bumped and I looked at it. The OP seems to use the two terms coefficient of ionization and ionization coefficient interchangeably and assigns the variable $\alpha$. The problem is in part asking about the pH of a 0.1 molar ammonia solution.

Am I correct to assume that the ionization coefficient is the fraction of the ammonia that has ionized?

My google foo is off today. I couldn't find a formula anywhere where the context made sense. The problem in question has nothing to do with a plasma.

• Am I correct to assume that the ionization coefficient is the fraction of the ammonia that has ionized? Yes. – Avyansh Katiyar Jul 22 '18 at 17:09
• It's degree not coefficient. – Mithoron Jul 23 '18 at 19:21
• @Mithoron _ Thanks! I now suspect that the OP in the original problem may have translated it from another language and used an uncommon term. – MaxW Jul 23 '18 at 22:20