A chemist prepares a solution of aluminum chloride (AICI,) by measuring out 78. umol of aluminum chloride into a 350. mL volumetric flask and filling theflask to the mark with water.Calculate the concentration in mol/L of the chemist's aluminum chloride solution. Round your answer to 2 significant digits.

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Asked Nov 24, 2019
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A chemist prepares a solution of aluminum chloride (AICI,) by measuring out 78. umol of aluminum chloride into a 350. mL volumetric flask and filling the
flask to the mark with water.
Calculate the concentration in mol/L of the chemist's aluminum chloride solution. Round your answer to 2 significant digits.
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A chemist prepares a solution of aluminum chloride (AICI,) by measuring out 78. umol of aluminum chloride into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's aluminum chloride solution. Round your answer to 2 significant digits.

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Expert Answer

Step 1

The molarity or the concentration can be defined as the ratio of number of moles of solute which are present per liter of the given solution. The SI units of molarity are moles/L. The mathematical formula as follows:

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Number of moles(n) Molarity= Volume (L)

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Step 2

In the given problem, the number of moles of AlCl3 which have been dissolved by the chemist is given to be 78 micromole.Now,

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1 micromole 10^mole 78umol 78x10 mol

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Step 3

The volume of the solution is given to be 350 mL=0.35 L.

The mo...

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Number of moles(n) Molarity= Volume (L) 78x10mol 0.35 L -222.85x10 mol/L =2.228x10mol/L

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