Metalic ti in resence of HCI is oxidised by K_(2)Cr_(2)O_(7) to stannic chloide whast volume of decinormal in aicdic medium?

Metalic ti in resence of HCI is oxidised by K_(2)Cr_(2)O_(7) to stanni

1.	Metalic ti in resence of HCI is oxidised by K_(2)Cr_(2)O_(7) to stannic chloide whast volume of decinormal in aicdic medium?
Answer» Solution :BALANCED chemical equation is `2K_(2)Cr_(2)O_(7)+3Sn+28HCIrarr4KcI+4 CrCI_(3)+3 SnCI_(4)+14 H+_(2)O` `2(2xx39+2xx52+7xx16)=356.1 g` Now 356.1 Sn react with `K_(2)Cr_(2)O_(7)=(588)/(356.1)g=1.651 g` Eq .wt of `K_(2)CrO_(7)=("mol.wt")/(6)=(294)/(6)=49` Decinormak `K_(2)Cr_(2)O_(7)` slution means 1000 mL solution CONTAINS 4.9 g`K_(2)Cr_(2)O_(7)i.e 4.9 g K_(2)Cr_(2)O_(7)` are present in 1000 mL solution `therefore` 1.651 g willbe present in =`(1000)/(4.9)xx1.651=336.9 mL`