The density of a 20.0% by mass ethylene glycol ([tex]C_{2} H_{6} O_{2}[/tex]) solution in water is 1.03 g/ml. the molarity of the solution is 16.58 M
A substance's density is defined as its mass per unit volume.
[tex]D=\frac{m}{v}[/tex]
where,
D=density
m= mass
v= volume
Mole concentration per liter of solution is known as molarity.
Let's assume that the solution weighs 100 grams. Ethylene glycol's mass would thus be 20.0 grams.
Ethylene glycol has a molar mass of 62.07 grams per mol.
mole = [tex]\frac{given mass }{ molar mass}[/tex]
= [tex]\frac{20.0}{62.07}[/tex] =0.322 g
We determine the volume of the solution and convert it to liters using the formulas:
D= m/ v
v= m/D
v= [tex]\frac{20.0}{1.03}[/tex] = 19.41 mL
Molarity =[tex]\frac{no. of moles }{volume ( L)}[/tex]
= [tex]\frac{0.322}{19.41} * 1000[/tex]
=16.58 M
so, the molarity of the solution is 16.58 M
Learn more about molarity here:-
https://brainly.com/question/23243759
#SPJ4
