12.25 g of `KClO_3` and 5.85 g of `NaCl` ar heated together. The residue obtained at the end of burning is dissolved in water to prepare a 500 mL solution. To the solution obtained, excess of `AgNO_3` is added. Find the moles of white precipitate formed. Also find the molarity of the solution after filtering out the precipitate with respect to `NaNO_3` and `KNO_3`
(molecular mass of `KClO_3` is 122.5 and that of `NaCl` is 58.50)

Explanation

`12.25 g KClO_3-=0.1 mol`
`5.85 g NaCl-=0.1 mol`
`2KClO_3overset(Delta)to2KCl+3O_2`
`NaCloverset(Delta)toNaCl` (does not decompose)
`{:(KCloverset(AgNO_3)toAgCl+KNO_3),(NaClunderset(AgNO_3)toAgCl+NaNO_2):}`
`implies` Moles of `AgCl=(0.1)+(0.1)=0.2`
Moles of `KNO_3=0.1`
`M=0.2` M
Similarly, `M_(NaNO_3)=0.2M`