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A 2.0-liter aqueous solution contains a total of 3.0 moles of dissolved NH4Cl at 25°C and standard pressure.

Determine the molarity of the solution.

Sagot :

lulu1991
The molarity is a concentration unit which defined as the number of moles of solute divided by the number of liters of solution. So the molarity of the solution is 3/2=1.5 mol/L.

Given that

Volume of solution = 2.0 L

Number of mole of solute = 3.0 mole

Therefore molarity = number of moles / volume in L

= 3.0 Mole /2.0 L

= 1.5 mole / L

= 1.5 M

Molarity:

The number of moles of solute per liter of solution is known as molarity of the solution. It symbolized by M. Molarity of any solution is a ratio of moles of solutes per liter of solution.  It expressed by the following formula:  

molarity = number of moles / volume in L

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