Calculate the volume in liters of 0.558 M KOH necessary to titrate 0.016 moles of hydrochloric acid, HCl, to a phenolphthalein end-point.

Explanation:

Let the volume required be v litre .

moles of KOH in v litre of .558 M of KOH = v x .558 moles

1 mole of KOH reacts with 1 mole of HCl

v x .558 moles of KOH reacts with v x .558  mole of HCl

v x .558  = .016

v = .016 / .558

= .02867 litre

= 28.67 mL .

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .