A 0.4960 g sample of a CaCO3 is dissolved in an acidic solution. The calcium is precipitated as CaC2O4.H2O and the dry precipitate is found to weigh 0.6186 g. What is the percentage of CaO in the sample? (Ca=40 g/mol, C=12 g/mol, O=16 g/mol, H=1 g/mol)

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A: [F-]= [9.15 × 10^-3]----------------(NaF) [PO4^3-]=1.04× 10^-2M------------(K3Po4)

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A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

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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.