Question

Plzzzz Help!!!!

What is the molarity of a solution that contains 1.45 moles of KCl in 1, 250 mL of
solution?

Answer 1

Explanation:
In order to calculate the molarity of a solution, you need to know two things
the number of moles of solute present in solution
the total volume of the solution
The problem provides you with a
24.7-g
sample of potassium chloride,
KCl
, and a total volume of a solution of
500. mL
.
In order to find the number of moles of potassium chloride, your solute, use the compound's molar mass, which as you know tells you the mass of one mole of potassium chloride

Answer 2

Molarity of the solution is 5.8M

• Given :

        moles of solute (n) = 1.45      

        Volume of solution (V) = 250 ml

• WHAT IS MOLARITY ??

Molarity of a solution is defined as the number of moles of the solute dissolved per litre of the solution. It is represented as M . Thus a solution, which contains one gram mole of the the solution dissolved per litre of the solution is regarded as .

M = n of solute  / Vol (L)

     

    =  $\frac{1.45 * 1000}{100 * 250}$ = 5.8 M

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