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How many moles of KBr are present in 140 mL of a 0.130 M solution?

Question:

How many moles of KBr are present in 140 mL of a 0.130 M solution?

Molarity

Remind that the molarity of a solution can be solved using a standard equation given as {eq}M = \dfrac{\text{moles of solute}}{V} {/eq}, where {eq}M {/eq} is the molar concentration of the solution, and {eq}V {/eq} is the volume of the solution. Note also that the molarity value of the solution is always directly proportional to the number of moles of the solution.

Answer and Explanation: 1

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We can use the equation below to calculate the number of moles of the solute present in the solution. That is,

{eq}\text{mole of solute}= M\cdot...

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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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