, 24.01.2020jesser9

# Achemist prepares a solution of aluminum chloride by measuring out of aluminum chloride into a volumetric flask and filling the flask to the mark with water. calculate the concentration in of the chemist's aluminum chloride solution.

0.15M

Explanation:

Molar Concentration =

Assuming 20g of the unadulterated aluminium chloride was weighed into the volumetric flask, and given molar mass of AlCl3 = 133.34g/mol

∴ Molarity =

= 0.14999 ≈ 0.15M (to 2 significant figures)

I hope this solution is clear. The same can be calculated from concentration by volume.

The question is incomplete, here is the complete question:

A chemist prepares a solution of aluminum chloride by measuring out of 11. g aluminum chloride into a 50. 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.

The concentration of aluminium chloride solution is 1.65 mol/L

Explanation:

To calculate the molarity of solution, we use the equation:

We are given:

Given mass of aluminium chloride = 11. g

Molar mass of aluminium chloride = 133.34 g/mol

Volume of solution = 50. mL

Putting values in above equation, we get:

Hence, the concentration of aluminium chloride solution is 1.65 mol/L

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