% of \(\ce{NaCl}\)

Chemistry Level pending

A mixture of \(\ce{CaCl_2}\) and \(\ce{NaCl_2}\) of mass \(4.44\text{ g}\) is treated with \(\ce{Na_2CO_3}\) solution to precipitate all \(\ce{Ca^{2+}}\) ions to \(CaCO_3. CaCO_3\) so obtained is heated strongly to get \(0.56\text{ g}\) of \(\ce{CaO}\). The % of \(\ce{NaCl_2}\) in the mixture(at mass of Ca=40)

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