The density of a 50% solution of naoh is 1.525 g/ml. what volume of a solution that is 50% by weight naoh is required to make 0.4 liter of 0.1m naoh solution?

The volume of NaOH required to make 0.4 L of 0.1 M solution is 2.09 ml.

Explanation:

Let us assume the 50% of the solution to be by volume.

Molarity of solution = 0.1 M

O.1 M solution means, 0.1 moles of solute in 1L of solution.

Moles of NaOH in 0.4 L solution = 0.1 0.4

Moles of NaOH = 0.04

Density =

Mass of  1 ml of 50% NaOH solution =

Mass of 1 ml 50% NaOH solution = 1.525 1

Mass of 1 ml of 50% NaOH solution = 0.7625 g

Moles of NaOH in 1 ml of 50% NaOH solution =

Moles of NaOH in 1ml of 50% NaOH solution = 0.01906 moles/liters

Molarity =

Volume =

Volume of NaOH = ml

Volume of NaOH = 2.09 ml

The volume of NaOH required to make 0.4 L of 0.1 M solution is 2.09 ml.

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the answer would be c

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.