Solution is 2.41 molal toluene (C 7H 8, 92 g/mol) in benzene (C 6H 6, 78 g/mol); i. e. consider toluene the solute, benzene the solvent. What is the molarity? The density of the solution is 0.876 g/cm 3.

Answer : The molarity of solution is, 1.73 mole/L

Explanation :

The relation between the molarity, molality and the density of the solution is,

where,

d = density of solution  =

m = molality of solution  = 2.41 mol/kg

M = molarity of solution  = ?

= molar mass of solute (toluene) = 92 g/mole

Now put all the given values in the above formula, we get  the molality of the solution.

Therefore, the molarity of solution is, 1.73 mole/L

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the answer is 1 i believe