Question

Calculate the volume in liters of a 0.104 M potassium permanganate solution that contains 375. mmol of potassium permanganate . Be sure your answer has the correct number of significant digits. Answer should be in L

Answer 1

Answer:

3.605 L

Explanation:

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity

V = volume of solution in liter ,

n = moles of solute ,

From the question,

M = 0.104 M

n = 375 mmol ,

Since,

1 mmol = 10⁻³ mol

n = 375 * 10⁻³ mol

V = ?

Now, to calculate the volume of  potassium permanganate solution can be calculated by using the above relation -

M = n / V  

Putting the corresponding values ,

0.104 M = 375 * 10⁻³ mol / V

Rearranging the above equation ,

V = 375 * 10⁻³ mol /  0.104 M

V = 3.605 L