Asolution is prepared by dissolving 0.60 g of nicotine (a nonelectrolyte) in water to make 12 ml of solution. the osmotic pressure of the solution is 7.55 atm at 25 °c. the molecular weight of nicotine is g/mol.

Molecular weight of nicotine is 162 g/mol

Explanation:

Osmotic pressure () for nonelectrolyte is expressed as-

where C is molarity of solution, R is gas constant and T is temperature in Kelvin scale.

If molecular weight of nicotine is W g/mol then number of moles of nicotine present in solution is equal to moles

So, molarity (C) of solution =

R is equal to 0.082 L.atm/(mol.K), T is 298 K and ) is 7.55 atm

So,

or, W = 162

So molecular weight of nicotine is 162 g/mol

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 .

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.