3.75 g sample of calcium carbonate was dissolved using 6 m hcl and diluted with water to 500 ml. a 50.00 ml portion of this solution is transferred to a flask and the ph was adjusted by adding 5ml of NH3-NH4Cl buffer. after adding EBT indicator, the solution required 47 ml EDTA to reach the end point. given: CaCO3 = 3.75g HCl Conc = 6M Water = 500 mL or 0.5 L EDTA = 47 mL

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