Respuesta :
Answer:
Molarity of [tex]KIO_{3}[/tex] solution is 0.612 mol/L
Explanation:
Number of moles of a substance = (mass of substance)/(molar mass of the substance)
Molar mass of [tex]KIO_{3}[/tex] = 214 g/mol
So, 562 g of [tex]KIO_{3}[/tex] = [tex]\frac{562}{214}[/tex] moles of [tex]KIO_{3}[/tex] = 2.63 moles of [tex]KIO_{3}[/tex]
Molarity of a solution = (number of moles of solute in solution)/(total volume of solution in liter)
Here solute is [tex]KIO_{3}[/tex] and solvent is water
Total volume of solution is 4.30 L
So, molarity of [tex]KIO_{3}[/tex] solution = [tex]\frac{2.63}{4.30}mol/L[/tex] = 0.612 mol/L
The molarity of the KIO₃ solution is 0.611 M
From the question,
We are to determine the molarity of the KIO₃ solution
First, we will determine the number of moles of KIO₃ present in the solution.
From the given information,
Mass of KIO₃ = 562 g
Using the formula
[tex]Number\ of\ moles = \frac{Mass}{Molar\ mass}[/tex]
Molar of KIO₃ = 214.001 g/mol
∴ Number of moles of KIO₃ present = [tex]\frac{562}{214.001}[/tex]
Number of moles of KIO₃ present = 2.62615595 moles
Now, for the molarity (that is, concentration) of the KIO₃ solution,
Using the formula,
[tex]Concentration = \frac{Number\ of\ moles}{Volume}[/tex]
From the question,
Volume of the solution = 4.30 L
∴ Concentration of the KIO₃ solution = [tex]\frac{2.62615595}{4.30}[/tex]
Concentration of the KIO₃ solution = 0.610734 M
Concentration of the KIO₃ solution ≅ 0.611 M
Hence, the molarity of the KIO₃ solution is 0.611 M
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