A 10 gm of sample mixture of calcium chloride and sodium chloride is t

1.	A 10 gm of sample mixture of calcium chloride and sodium chloride is treated with na2co3 to
Answer» CaCO3 +heat--->CaO +Co2 X gms 1.68gms 100 56 [molecular mass of CaCO3=100u molecular mass of CaO=56u] cross multiply through the equation and solve for x grams of caco3 x=1.62x100/56 =2.89g Cacl2 +Na2Co3 --->Caco3 +2 Nacl x 2.89g 111 100 Again cross multiply through the equation and solve for x grams of Cacl2 x=2.89x 111/100 =3.2g %CaCl2 in original MIXTURE 3.2grams Cacl2 over 10gms mixture is 32%

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