A pH value only has meaning in anaqueous solution(in water). Many chemicals, includingliquids, do not havepH values. If there is no water, there is no pH. For example, there is no pH value forvegetable oil, gasoline, or pure alcohol. IUPAC Definition of pH The International Union of ...
在化学的历史中，H都指代的是氢离子或氢离子浓度，这个没有问题 而p的写法稍有变化，在早期化学中，pH有各种写法，比如p[H](首创于丹麦科学家），也有H作p的下标的写法，在法语和德语中，pH也可翻译为氢离子的势能（potential hydrogen）在现代化学中，小写p指代的是“以10为底数的对数值”，比如...
pH meaning, definition, what is pH: a number on a scale of 0 to 14 which sho...: Learn more.
abbreviation chemistry The negative of the logarithm to the base 10 of the concentration of hydrogen ions, measured in moles per liter; a measure of acidity or alkalinity of a substance, which takes numerical values from 0 (maximum acidity) through 7 (neutral) to 14 (maximum alkalinity).Etymol...
pHis defined as the negative logarithm of H+ion concentration. Hence the meaning of the name pH is justified as the power of hydrogen. We know that all the acids and bases do not react with the same chemical compound at the same rate. Some react very vigorously, some moderately while oth...
phthalein [ thal-een, -ee-in, fthal- ] Phonetic (Standard) IPA noun , Chemistry. any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived.Discover More Word History and Origins Origin of phthalein1 First recorded in 1900...
For example, in Chemistry, the abbreviation pH means Potential of Hydrogen. It is a measurement scale that defines the nature of a material, like acidic, basic, and neutral. Does PH mean photo? Yes, the abbreviation ph can mean a photograph. However, one can not conclude the meaning of ...
C R C Critical Reviews in Analytical ChemistryBates, RG (1981) The modern meaning of pH. Crit Rev Anal Chem (Amsterdam) 10: pp. 78-247Bates RG (1981) The modern meaning of pH. Crit Rev Anal Chem (Amsterdam) 10:78-247Bates, R. G. The modern meaning of pH. CRC Crit. Rev. Anal...
When calculating pH for basic solutions, what is the meaning of the symbol " ^ " ? What will be the change in pH of water when (OH-) increases by a factor of 10? How does one calculate the ph of a solution? Is a solution with a pH of 5 more acidic than a solution ...
How is this nomenclature read and what is the meaning of the alpha and the n? quote below In terms of the absolute 182Hf abundance, howevever, only AGB (asymptotic giant branch) models of mass ~2 to 4 solar masses are major producers of s process 182Hf in the Galaxy, owing to the ...