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5 August, 19:40

What is the molarity of a solution that has 2.0 mol of MgF2 dissolved in enough water to make 1.29 L of solution?

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Answers (2)
  1. 5 August, 20:00
    0
    The molarity of MgF2 is 1.55 M

    Explanation:

    Step 1: Data given

    Number of moles MgF2 = 2.0 moles

    Volume of solution = 1.29 L

    Molar mass MgF2 = 62.3 g/mol

    Step 2: Calculate molarity of the MgF2 solution

    Molarity MgF2 = moles MgF2 / volume solution

    Molarity MgF2 = 2.0 moles MgF2 / 1.29 L

    Molarity MgF2 = 1.55 mol/L = 1.55 M

    The molarity of MgF2 is 1.55 M
  2. 5 August, 21:08
    0
    [MgF₂] = 1.55 M

    Explanation:

    Molarity → mol/L

    A sort of concentration where are indicated the moles of solute contained in 1L of solution

    Moles of solute: 2 moles

    Volume of solution 1.29L

    M = 2 mol / 1.29L = 1.55M
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