How many milliliters of 0.2560 M KCl solution will contain 20.00 g of KCl? Answer is 1048 mL solution but how do I get to the answer?

Question

How many milliliters of 0.2560 M KCl solution will contain 20.00 g of KCl?
Answer is 1048 mL solution but how do I get to the answer?

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Thiên Di 5 months 2021-08-29T01:46:05+00:00 1 Answers 2 views 0

Answers ( )

  1. thanhha
    0
    2021-08-29T01:47:30+00:00
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    Answer:

    1048 mL

    Explanation:

    Step 1: Given data

    • Concentration of the solution: 0.2560 M
    • Mass of KCl (solute): 20.00 g

    Step 2: Calculate the moles corresponding to 20.00 g of KCl

    The molar mass of KCl is 74.55 g/mol.

    20.00 g × 1 mol/74.55 g = 0.2683 mol

    Step 3: Calculate the volume of the solution

    Molarity is equal to moles of solute divided by liters of solution.

    M = moles of solute / volume of solution

    volume of solution = moles of solute / M

    volume of solution = 0.2683 mol / (0.2560 mol/L)

    volume of solution = 1.048 L = 1048 mL

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