Determine the amount of volume of 37 wt% HCl that should be added to 1 L...
Determine the amount of volume of 37 wt% HCl that should be added to 1 L of distilled water to make 0.1 M HCl and prepare the solution. The density should be obtained for HCl to determine the volume needed.
Homework Answers
Solution:
The molar mass of HCl =. 36.4611 g/mol
Density of HCl = 1.189 g/ml
According to Molarity equation,
Molarity (M) =mass of HCl / molar mass of HCl x volume in L
Mass of HCl = 0.1 M x 36.4611 g/mol x 1 Litre = 3.6461 g
Weight = 37 % = 37 /100 = 0.370
Volume of HCl needed = mass of HCl / density x weight of HCl
Volume of HCl = (3.6461g) /(0.370 x 1.189g /ml) = 8.2879 ml
So, 8.2879 ml of 37% concentrated HCl is needed to prepare 0.1 M HCL.
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