The degree of hydrolysis of 0.1 M RNH(3)...

The degree of hydrolysis of 0.1 M `RNH_(3)Cl` solution is `1.0%.` If the concentration of `RNH_(3)Cl` is made 0.4 M, what is the new degree of hydrolysis (in percentage)?

A

`0.01`

B

`0.001`

C

`0.2`

D

`0.5`

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