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Calculate the molarity the following sol...

Calculate the molarity the following solution `30g Co(NO_3)_2.6H_2O` in 4.3L of solution

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Molar mass of `Co(NO_3)_2.6H_2O`= `59+ 2(14+48)+ 6xx18=291`
`therefore` Molarity=`W_1/ (M_1xxV)`(in L) = `30/(291xx4.3)= 0.024`
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