2.5g of a mixture containing CaCO_(3),Ca(HCO_(3))_(2) and NaCl was dissolved in 100mL water and its 10mL portion required 10mL 0.05M H_(2)SO_(4) solution to reach the phenolphthalein end point. Another 10mL portion of the same stock solution required 32.35 mL of the same acid solution to reach the methyl orange end point. Determine mass percentage ratio of CaCO_(3) and Ca(HCO_(3))_(2) in the original mixture.

2.5g of a mixture containing CaCO_(3),Ca(HCO_(3))_(2) and NaCl was dis

1.	2.5g of a mixture containing CaCO_(3),Ca(HCO_(3))_(2) and NaCl was dissolved in 100mL water and its 10mL portion required 10mL 0.05M H_(2)SO_(4) solution to reach the phenolphthalein end point. Another 10mL portion of the same stock solution required 32.35 mL of the same acid solution to reach the methyl orange end point. Determine mass percentage ratio of CaCO_(3) and Ca(HCO_(3))_(2) in the original mixture.
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