How many liters of solution are needed to make a 1.66m solution containing 2.11 moles of kmno4

1.27 liters of solution are needed to make a 1.66M solution containing 2.11 moles of KMnO4.

Volume = no. of moles ÷ molarity

Volume = 2.11mol ÷ 1.66M

Volume = 1.27L

Therefore, 1.27 liters of solution are needed to make a 1.66M solution containing 2.11 moles of KMnO4.

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The volume of solution required is 1.3 L.

Explanation: Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Given : Molarity = 1.66 M

Moles of = 2.11 moles

Putting in the values in the equation:

Thus the volume of solution required is 1.3 L.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

clouds form

solid ice forms on leaves.

water droplets form on grass.