Question

what is ph? ................


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Answer 1

Answer:

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.

Answer 2

$\mathtt{\huge{\underline{\red{Answer :-}}}}$

The pH of a solution is the magnitude of the negative power to which 10 must be raised to express the hydrogen ion concentration of the solution in moles per litre.

• Ph from 0-7 is acidic.

1. HCL = 0
2. Sulphuricacid = 0.5
3. Vinegar = 2.4 - 3.4
4. Soft drink = 3
5. Beer = 4-5
6. Saliva = 6.5

• Ph 7 is neutral.

Salt = 7

• Ph from 7-14 is basic.

1. Milk of magnesia = 10
2. Ca(OH)2 = 10.5
3. 0.1N NaOH = 13
4. 1M of NaOH = 14

The value of ph ranging 0 to 14 . If H+ ${10}^{0}$ mol L-¹. It is measured using an instrument on pH scale.

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