1.

6 xx 10^(–3) mole K_(2)Cr_(2)O_(7) reacts completely with 9 xx 10^(–3) mole X^(n+) to give XO_(3)^(-)and Cr^(3+). Find the value of X.

Answer»

SOLUTION :`K_(2)Cr_(2)O_(7)+X^(n+)RARROVERSET(+5)(X)O_(3)^(-)+CR^(3+)`
`6xx10^(-3)xx6=(5n)xx9xx10^(-3)rarrn=1`


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