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15 grams of NaCl is dissolved completely in a beaker containing 200 mL of water. What is the Na^+...

Question:

15 grams of NaCl is dissolved completely in a beaker containing 200 mL of water. What is the Na{eq}^+ {/eq} concentration in moles/liter in the final solution?

Molarity:

The molarity of a solution is the number of moles per unit volume(usually the liter). When given the mass of the solute, we use the molar mass as a conversion factor to determine the number of moles. After that, the number of moles divided by the volume gives the molar concentration or molarity.

Answer and Explanation: 1

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We have the following about the solute:

  • The mass of the solute is {eq}\rm m = 15\rm \ g {/eq} .
  • The mass per unit of the compound equals the sum of...

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Calculating Molarity and Molality Concentration

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Chapter 8 / Lesson 4
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What is molarity? What is molality? Compare molarity vs molality by viewing molality and molarity formulas, how to calculate molarity and molality, and examples.


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