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Calculate the molarity of eaCHM of the f...

Calculate the molarity of eaCHM of the following solutions `:`
`a. 30g` of `Co(NO_(3))_(2).6H_(2)O` in `4.3L` of solution
`b. 30mL` of `0.5 M H_(2)SO_(4)` diluted to `500mL`.

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