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mestny [16]
2 years ago
14

The molar mass of KCl is 74. 55 g/mol. If 8. 45 g KCl are dissolved in 0. 750 L of solution, what is the molarity of the solutio

n? Use Molarity equals StartFraction moles of solute over liters of solution EndFraction. 0. 113 M 0. 151 M 6. 62 M 11. 3 M.
Chemistry
1 answer:
rosijanka [135]2 years ago
4 0

Molarity is the strength of the solution or the ratio of the moles and the volume of the solution. The molarity of the solution is 0.1516 mol per Liter.

<h3>What is molarity?</h3>

Molarity is the molar concentration of the solution that tells about the amount of the solute or the substance dissolved in the given amount of the solution.

Given,

  • Mass of potassium chloride = 8.45 g
  • Molar mass of potassium chloride = 74. 55 g/mol
  • Volume of the solution = 0.750 L

Moles can be calculated by:

\begin{aligned}\rm Moles &= \rm \dfrac{Mass }{\rm Molar \;mass}\\\\&= \dfrac{8.45}{74.55}\\\\&= 0.1133\;\rm  mol\end{aligned}

Calculate molarity by:

\rm Molarity = \dfrac{moles}{\text{Volume in L}}

Substituting values in the equation:

\begin{aligned}\rm  Molarity &= \dfrac{0.1133}{0.750}\\\\&= 0.1516 \;\rm mol\;L^{-1}\end{aligned}

Therefore, the molarity of the solution is 0.1516 mol per Liter.

Learn more about molarity here:

brainly.com/question/2560307

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