The Concentration is 0.19 mol/L i.e., also known as molarity which is calculated below.
Step 1: Calculation of molarity
Molarity is defined to be the number of moles of solute divided by volume of solution in liters
i.e., Molarity(M)= number of moles of solute / volume of solution ( in L )
Step 2: Calculate the moles of KMnO4
Given,
Mass = 5.9 g
Molar mass of KMnO4 = 158.034 g/mol
we know, moles = mass / molar mass
moles of KMnO4 = 5.9 g / 158.034 g/mol = 0.037334 mol
Step 3: Calculation of molarity
Volume of solution = 200 mL = 0.200 L
[ because 1 L=1000 mL so, 200 mL = ( 200 mL × ( 1 L / 1000 mL) = 0.200 L ]
Since we know ,
molarity = moles of solute / volume of solution in L
molarity = 0.037334 mol /0.200 L = 0.19 mol/L
Hence, the Concentration is 0.19 mol/L
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Complete question:
A Chemist Prepares A Solution Of Potassium Permanganate (KMnO4) By Measuring Out 5.9 G Of Potassium Permanganate Into A 200 ML Volumetric Flask And Filling The Flask To The Mark With Water. Calculate The Concentration In Mol/L Of The Chemist's Potassium Permanganate Solution. Round Your Answer To 2 Significant Digits.
