As the concentration of a solution increases, its vapor pressure deceases. For a nonvolatile solute B in a liquid solvent A, the relationship between concentration and vapor pressure is expressed by Raoult’s Law. In a 2-component solution consisting of A & B, the mole fraction, X, of A is defined as XA = (mol A)/(mol A+B). In a solution of 2 volatile liquids, A&B, each contributes to the total VP above the soln. The total VP is sum of the partial pressures. Ptot = PA+PB= XAPA + XBPB where PA & PB are VP of pure A & B. a) A solution has 1.40 mol cyclohexane (P= 0.128 atm) & 2.40mol acetone (P=0.302 atm). What is the total VP? b) What mole fraction of the vapor above the solution is cyclohexane?

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

b.final

idk what is it? is this a question that you know the answer or u dont