What is the molarity of a solution of 1/2 mol of cu(no3)2 in 1/2 l water

Answer : The molarity of solution is, 1 mole/L

Explanation : Given,

Moles of =

Volume of water =

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

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

Therefore, the molarity of solution is, 1 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.