10-Concentration is the amount of a substance in a predefined volume of space. The basic measurement of concentration in chemistry is molari

Question

10-Concentration is the amount of a substance in a predefined volume of space. The basic measurement of concentration in chemistry is molarity or the number of moles of solute per liter of solvent. What is the molarity of a solution containing 9.478 grams of Rucl, in enough water to make 1.00 L of solution?

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Linh Đan 5 years 2021-07-17T17:00:49+00:00 1 Answers 30 views 0

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  1. trucchi
    0
    2021-07-17T17:02:38+00:00
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    Answer:

    0.0457 M

    Explanation:

    Concentration is the amount of a substance in a predefined volume of space. The basic measurement of concentration in chemistry is molarity or the number of moles of solute per liter of solution. What is the molarity of a solution containing 9.478 grams of RuCl₃, in enough water to make 1.00 L of solution?

    Step 1: Given data

    • Mass of RuCl₃ (solute): 9.478 g
    • Volume of solution: 1.00 L

    Step 2: Calculate the moles corresponding to 9.478 g of RuCl₃

    The molar mass of RuCl₃ is 207.4 g/mol.

    9.478 g × 1 mol/207.4 g = 0.04570 mol

    Step 3: Calculate the molarity of the solution

    We will use the definition of molarity.

    M = moles of solute / liters of solution

    M = 0.04570 mol / 1.00 L = 0.0457 M

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