`A 1.85 g` sample of mixture of `CuCl_(2)` and `CuBr_(2)` was dissolved in water and mixed thoroughly with `1.8 g ` portion of `AgCl`. After reaction, the solid which now dissoved contain `AgCl` and `AgBr` was filtered, dried and weighed to be `2.052 g.` What was the `%` by weight of `CuBr_(2)` in the mixture?

A" " 0.2g sample , which is mixture of NaCl, NaBr and NaI was dissolved in water and excess of AgNO_(3) was added. The precipitate containing AgCl,AgBr and AgI was filtered, dried and weighed to be 0.412g . The solid was placed in water and treated with excess of NaBr , which converted all AgCl into AgBr . The precipitate was then weighed to be 0.4881 g . It was then placed into water and treated with excess of NaI , which converted all AgBr into AgI . The precipitate was then weighed to be 0.5868 g . What was the percentage of NaCl, NaBr and NaI in the original mixture :

896 mL. of a mixture of CO and CO_2 weigh 1.28 g at NTP. Calculate the volume of CO_2 in the mixture at NTP.

2 g of a mixture of CO and CO_2 on reaction with excess I_(2)O_(5) produced 2.54g of I_2 . What will be the mass percentage of CO_(2) in the original mixture ?

A mixture of aluminium and zinc weighing 1.67 g was completely dissolved in acid and 1.69 litres of hydrogen measured at 0°C and 1 atmospheric pressure were evolved. What was the original weight of aluminium in the mixture?

4.008 g of pure KCIO_(3) , was quantitatively decomposed to give 2.438 g of KCl and oxygen. KCl was dissolved in water and treated with AgNO, solution. The result was a precipitate of AgCl weighing 4.687 g. Under further treatment, AgCl was found to contain 3.531 g of Ag. What are the atomic weights of Ag, Cl and K relative to O = 16?

A precipitate of AgCl and AgBr weighs 0.4066g . On heating in a current of chlorine, the AgBr is converted to AgCl and the mixutre loses 0.0725 g in weight. Find the % of Cl in original mixture.