1.

800mL 0.l(M) HCl solution is mixed with 200mL 0.5(M) CH_3NH_2 solution. In the resulting solution , concentration of H_3O^(+) ions is [K_b(CH_3NH_2)=5xx10^(-4)] is

Answer»

`3xx10^(-5)(M)`
`1.25xx10^(-4)(M)`
`8xx10^(-11)(M)`
`7.2xx10^(-10)(M)`

ANSWER :C


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