pH值 - 维基百科，自由的百科全书
网页pH，亦称pH值、氢离子浓度指数、酸值、酸鹼值 [1] 、「⿰离巠」（離氫切、注音： ㄌㄧㄥˊ 、拼音：líng）標值 [2] ，是溶液中氢离子 活度的一种标度，也是衡量溶液酸 碱程度的最普遍标准。
pH - Wikipedia
网页In chemistry, pH (/ p iː ˈ eɪ tʃ / pee-AYCH), also referred to as acidity or basicity, historically denotes "potential of hydrogen" (or "power of hydrogen"). [1] It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.
PH | Definition, Uses, & Facts | Britannica
网页pH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion —which ordinarily ranges between about 1 and 10 −14 gram-equivalents per litre—into numbers between 0 and 14.
pH值 - 维基百科，自由的百科全书
网页pH，亦称 pH值 、 氢离子浓度指数 、 酸值 、 酸碱值[1] 、 “⿰离𢀖” （离氢切 、注音： ㄌㄧㄥˊ 、拼音：líng） 标值[2]，是 溶液 中 氢离子 活度 的一种标度，也是衡量溶液 酸 碱 程度的最普遍标准。. 概念在1909年由 丹麦 生物化学家 瑟伦·索伦森 提出，“pH ...
酸碱度 - 百度百科
网页酸碱度(Pondus Hydrogenii)描述的是水溶液的酸碱性强弱程度，常用pH来表示溶液的酸碱度。热力学标准状况时，pH=7的水溶液呈中性，pH<7则显酸性，pH>7则显碱性。
ph 和 PH 的区别是什么？ - 知乎
网页2015年10月22日 · 度娘资料： pH值，亦称氢离子浓度指数、酸碱值，是溶液中氢离子活度的一种标度，也就是通常意义上溶液酸碱 程度的衡量标准。. 这个概念是1909年由丹麦 ….
What Is pH? The pH Formula & Equation - ChemTalk
网页What is pH? pH is a measure of how basic or acidic a substance is. pH has a range of 0-14. A pH greater than 7 means the substance is basic. A pH less than 7 means the substance is acidic. When the pH is exactly 7 that indicates that the substance is neutral. An acidic substance is anything that will give up a proton.
What Is pH and What Does It Measure? - ThoughtCo
网页2019年5月6日 · pH describes how acidic or basic an aqueous solution is, where a pH below 7 is acidic and a pH greater than 7 is basic. pH of 7 is considered neutral (e.g., pure water). Typically, values of pH range from 0 to 14, although very strong acids may have a negative pH, while very strong bases may have a pH exceeding 14.
pH Calculator
网页2024年7月25日 · With this pH calculator, you can determine the pH of a solution in a few ways. It can convert pH to H + , as well as calculate pH from the ionization constant and concentration . The pH value is an essential factor in chemistry, medicine, and daily life.
pH Definition and Equation in Chemistry - ThoughtCo
网页2024年8月15日 · The term "pH" is a measure of hydrogen ion concentration, a quantitative measure of the acidity or alkalinity of a solution. In chemistry, the pH scale usually ranges from 0 to 14. Aqueous solutions at 25°C with a pH of less than 7 are acidic, while those with a pH greater than 7 are basic or alkaline.
跳至内容