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26 October, 10:46

How many calcium ions are in 0.3 mol of cacl2?

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Answers (2)
  1. 26 October, 14:04
    0
    One mole of CaCl2 contains 1 mole of calcium.

    Therefore, 0.3 moles of CaCl2 will contain 0.3 moles of calcium.

    1 mole of calcium contains Avogadro's number of ions, therefore, 0.3 moles will contain:

    number of ions = 0.3 * 6.02 * 10^23 = 1.806 * 10^23 ions
  2. 26 October, 14:16
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    1.8 x 10^23 calcium ions Each mole of CaCl2 will produce 1 mole of calcium ions. So just multiply the number of moles of CaCl2 by avogadro's number. Therefore 0.3 * 6.0221409 x 10^23 = 1.806642 x 10^23 So there will be 1.8 x 10^23 calcium ions in 0.3 moles of CaCl2.
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