Why the average reading of sodium hydroxide is used to calculate the concentration of sulphuric acid?
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QUESTION:-
Why the average reading of sodium hydroxide is used to calculate the concentration of sulphuric acid?
ANSWER:-
- The average reading of sodium hydroxide is used to calculate the concentration of sulphuric acid because in this procedure it is helpful to find the concentration level of a concentrated solution of Sulphuric Acid which possibly is old and is not as sharp as its actual concentration marked on the commercial bottle.
- Strong acids like sulphuric acid effortlessly lose their concentration by decomposition and absorption of moisture from the air. The procedure is thus aimed at a concentrated solution of more than one Molar. And to dilute the sulphuric acid and find the titrate volume of known molarity of sodium hydroxide is required to neutralize the Acid dilution.
- From the sodium hydroxide titre volume, the number of moles of sodium hydroxide is calculated. If the ratio [ Acid: Alkali ] = 1: 2, and therefore the moles of hydrochloric acid are half that of sodium hydroxide. The moles of acid which are present in the volume titrated are converted to the Molarity of the Acid after putting up with the dilution.
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