Calculate the ph value of solution whose hydrogen ion concentration is 0.06gm ion/litre
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wer of 2, written in mathematics as √2 or 21⁄2, is the positive algebraic number that, when multiplied by itself, equals the number 2. Technically, it is called the principal square root of 2, to distinguish it from the negative number with the same property.
Geometrically the s the length of a diagonal across a square with sides of one unit of length; this follows the Pythagorean theorem. It was probably the first number known to be irrational.[citation needed]
As a good rational approximation for the square root of two, with a reasonably small denominator, OEIS consists of the digits in the decimal expansion of the square root of 2, here truncated to 65 decimal places:
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