Solution is made by dissolving 3. 14 g of nacl in 79. 9 ml of water. What is the concentration of sodium chloride in units of weight/volume percent?.

i believe the answer is a.

the ratio of the conjugate base to the acid required to attain the desired ph.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.