関連ワード:
what does it mean when ph is lower than pka what does it mean when ph is greater than pka what does it mean when ph is less than pka what does it mean if ph is lower than pka what does it mean when ph is less than pi what does it mean when pi is greater than ph what does it mean if ph is greater than pka what does it mean if ph is less than pka what does it mean when the ph is less than 7 what does it mean when the ph is greater than 7
