[Q&A] June 24, 2017
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This post was last edited by LQ198619 on 2017-6-23 13:30. What is pH? Answer: The pH value is the negative logarithm of the concentration of hydrogen ions [H+] in a solution; that is, pH = -lg. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg Petrochemical Sector – Innovative Energy-Saving Ideas: The “Creative Thinking” Campaign (the second phase is currently in full swing). http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1666758 (Source: Haichuan Chemical Industry Forum)
pH value is a measure of the acidity or alkalinity of water, ranging from 0 to 14. It represents the negative logarithm of the hydrogen ion concentration in water; a pH of 7 indicates alkalinity, with higher values indicating greater alkalinity.
The hydrogen ion concentration index refers to the ratio of the total number of hydrogen ions to their total amount in solution.
It is a value used to measure the acidity or alkalinity of water; also known as the hydrogen ion concentration index or pH value. It represents a scale of the activity of hydrogen ions in a solution, and is thus the standard used to determine the acidity or alkalinity of a solution in general terms
The pH value generally refers to the hydrogen ion concentration index, which is the ratio of the total number of hydrogen ions to their total amount in a solution. Its value is commonly referred to as the “pH value”. A value that indicates the acidity or alkalinity of a solution, namely the negative of the common logarithm of the concentration of hydrogen ions present.
Also known as pH, it refers to the degree of acidity or alkalinity of a solution, and is generally expressed using the pH value. A pH value of <7 indicates acidity, a pH value of 7 is neutral, and a pH value of >7 indicates alkalinity.
Values reflecting the acidity and alkalinity of a substance
A value that indicates the acidity or alkalinity of a solution; pH = -lg, which is the negative of the common logarithm of the concentration of hydrogen ions present.
The negative logarithm of the H+ concentration in the solution, that is, -lgC(H+)
The negative logarithm of the H+ concentration in a solution, that is, -lgC(H+), indicates the acidity or alkalinity of the solution. Under normal temperature and pressure, a neutral solution has a pH of 7
The pH value generally refers to the index of hydrogen ion concentration; this index is the ratio of the total number of hydrogen ions to their total amount in solution. Its value is commonly referred to as the “pH value”.