Achemist prepares a solution of calcium bromide cabr2 by measuring out 4.81μmol of calcium bromide into a 50.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in /μmoll of the chemist's calcium bromide solution. round your answer to 2 significant digits.

The concentration of the CaBr2 solution is 96 µmol/L

Explanation:

Step 1: Data given

Moles of Calciumbromide (CaBr2) = 4.81 µmol

Volume of the flask = 50.0 mL = 0.05 L

Step 2: Calculate the concentration of Calciumbromide

Concentration CaBr2 = moles CaBr2 / volume

Concentration CaBr2 = 4.81 µmol / 0.05 L

Concentration CaBr2 = 96.2 µmol /L = 96.2 µM

The concentration of the CaBr2 solution is 96 µmol/L

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