For life to continue, the concentration of glucose, salts and hydrogen ion within the blood must be kept within certain limits in spite of changing conditions. Hydrogen ion regulation is particularly necessary, for hydrogen ions are much more reactive than the other cellular and plasma positive ...
(Chemistry) potential of hydrogen; a measure of the acidity or alkalinity of a solution equal to the common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimetre of solution. Pure water has a pH of 7, acid solutions have a pH less than 7, and alk...
where aH+stands for hydrogen activity, which is the effective concentration of hydrogen ions in a solution. This might be slightly different from the true concentration. The IUPAC pH scale also includes thermodynamic factors, which may influence pH. For most situations, the standard pH definition i...
Bird excrement is highly acidic and eats into the stone.The DNA in the nucleus inside the cells of the human body is alkaline and, like stone buildings, is also defense/fight/sensitive/war to the corrosive effects of acidity. In our human bodies,the kidneys mop up excess hydrogen ions/free...
indexoftheintensityofhydrogenions. •pH是“intensity”factorandacidity是“capacity”factor. 天然水按pH值的不同可以划分为如下五类: 强酸性pH<5.0 弱酸性pH5.0-6.5 弱碱性pH8.0-10.0 强碱性pH>10.0 中性pH6.5-8.0 大多数天然水为中性到弱碱性,pH在6.0-9.0之间。淡水的pH值多 在6.5-8.5,部分苏打型湖泊水...
where {eq}[H^+] {/eq} is the concentration of hydrogen ions in the solution in the units of 'M', or mols per liter. Answer and Explanation: Learn more about this topic: Acids and Bases from Chapter 2/ Lesson 10 111K Acids are substances that contribute m...
Conversely, strong bases are those substances that readily donate OH– or take up hydrogen ions. Sodium hydroxide (NaOH) and many household cleaners are highly alkaline and give up OH– rapidly when placed in water, thereby raising the pH. An example of a weak basic solution is seawater, ...
离子液体水溶液pH值测定及酸碱特性研究
hydrogenii=h).PHisascalefortheactivityofhydrogenions inasolution,thatis,theusualmeasureofthedegreeof acidityofthesolution.ThemorethepHvaluetendsto0,the strongertheacidityofthesolutionis;otherwise,themore the14tendstobe,thestrongerthebasicityofthesolution ...
The C-terminal domain (CTD) of the largest subunit of RNA polymerase II (Pol II) is a regulatory hub for transcription and RNA processing. Here, we identify PHD-finger protein 3 (PHF3) as a regulator of transcription and mRNA stability that docks onto Pol II CTD through its SPOC domain...