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Determining the concentration of lime water Introduction Titrations involve adding a known concentration of acid to an unknown concentration of a base. I will be adding Nitric acid (HNO3) in an aqueous state to Calcium Hydroxide (Ca (OH) 2) which will also be an aqueous state. Aim The aim of the practical is to determine the concentration of the Calcium hydroxide that I have been provided with as accurately as possible. I have been provided with a 250 cm³ solution of lime water which has been made so that it contains exactly 0.8dm³ of Calcium Hydroxide. I have also available some Nitric acid which has a concentration of exactly 1.50 dm-³. The equation of the reaction is shown below. Equation Nitric acid + Calcium Hydroxide calcium nitrate + water 2HNO3 (aq) + Ca (OH) 2 (aq) Ca (NO3)2 (aq) + 2H2O (l) Apparatus I will be using the following apparatus in the titration experiment: * A '200 cm³'...

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