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college chemistry

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How many total moles of ions are released when the following sample dissolves completely in water:
5.15x10^-3 g Ca(NO3)2

  • college chemistry - ,

    Convert 5.15 x 10^-3 to moles. How many molecules will that be? moles x 6.022 x 10^23 x moles = # molecules.
    Then Ca(NO3)2 provides 3 ions/molecule so multiply # molecules above by 3.

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