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Answer :
Final answer:
To prepare a 5.00 L of 0.150 M KMnO4 solution, you need to dissolve 118.5265 grams of KMnO4 in water and dilute it to 5.00 L in a volumetric flask.
Explanation:
To prepare a 0.150 M KMnO4 solution with a volume of 5.00 L, we need to calculate the mass of KMnO4 required.
First, let's calculate the number of moles of KMnO4 needed using the formula:
moles = concentration × volume
Substituting the given values:
moles = 0.150 M × 5.00 L
Calculating the moles:
moles = 0.750 mol
Next, we can calculate the mass of KMnO4 using the formula:
mass = moles × molar mass
Substituting the values:
mass = 0.750 mol × 158.034 g/mol
Calculating the mass:
mass = 118.5265 g
Therefore, to prepare a 5.00 L of 0.150 M KMnO4 solution, you need to dissolve 118.5265 grams of KMnO4 in water and dilute it to 5.00 L in a volumetric flask.
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