CHEMISTRY- molarity

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what is the molarity of the solute in the following solution: a 12.5% w/v Co(NO3)2 solution?

  • CHEMISTRY- molarity -

    12.5% w/v means 12.5 g Co(NO3)2 in 100 mL solution.
    Convert 12.5 g Co(NO3)2 to moles. The M = moles/0.100 = ??

  • CHEMISTRY- molarity -

    i did that i just added the molecular wieght up wrong. thanks for making me recheck the working.

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