Chemistry  ¡í pH

»êµµ(acidity)¿Í pH

- ¹Ì»ý¹° : ¹Ì»ý¹° »ýÀ°Á¶°Ç
- º¸Á¸·á,  À½·á»ì±ÕÁ¶°Ç

- Çظ®µµ : °­»ê, ¾à»ê
- »êµµ(acidity)¿Í pH
- ³»»ê¼º : pH´Â ¿ëÇصµ¸¦ ¹Ù²Û´Ù

The pH is a logarithmic measure of the concentration of free hydrogen ions in a chemical or biological system. It's a very important concept in cell biochemistry. Titratable acid, on the other hand, is a simple measure of the (related) amount of acid 'anions' in a juice. There is no direct relationship between titratable acidity and pH in apple juice, although generally the pH goes up as the acid goes down and vice-versa. The exact relationship differs from sample to sample and depends on esoteric concepts like 'buffering capacity' which will vary for a whole host of reasons.