Question

write a note on ph scale​

Answer 1

Answer:

Ph is a measure of how acidic or basic is an aqueous solution. It is measured in terms of hydrogen ion concentration in the solution. The pH values range from 0 to 14. The values less than 7 represent an acidic solution, above 7 indicates a basic solution and 7 is neutral.

Answer 2

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pH Scale :-

In chemistry, pH is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic or alkaline solutions. The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution.

It's Range :-

The pH scale ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

Types :-

pH Test Papers

It is used to broadly test whether a solution is acidic or basic and comes in 3 types.

☘️ Red

☘️ Blue

☘️ Neutral

It's History :-

The concept of pH was first introduced by the Danish chemist Søren Peder Lauritz Sørensen at the Carlsberg Laboratory in 1909 and revised to the modern pH in 1924 to accommodate definitions and measurements in terms of electrochemical cells. In the first papers, the notation had H• as a subscript to the lowercase p, as so: pH•.

It's Uses :-

The pH scale is used to rank solutions in terms of acidity or basicity (alkalinity). Since the scale is based on pH values, it is logarithmic, meaning that a change of 1 pH unit corresponds to a ten-fold change in H +start superscript, plus, end superscript ion concentration.

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