. When aqueous sodium phosphate, Na3PO4, was adde to aqueous sodium chloride,CaCl2, calcium phosphate was precipitated. a) Write the formula of the ionic compound calcium phosphate produced. b) Write the chemical equation for the reaction between calcium chloride and sodium phosphate. c) Write the ionic equation for the above reaction. d) 300 cm 3of a solution of calcium ions, Ca 2+ , was mixed with 300 cm 3 of phosphate ions, PO4 3-. The concentration of both solutions was 0.1 mol/dm 3 . Calculate the mass of calcium phosphate precipitated.

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.