How many moles of HCl can be neutralized by 0.1 liter of 0.5 M NaOH? A. 0.1 B. 0.05 C. 0.5 D. 0.4

B. 0.05

Explanation:

The reaction that takes place is:

As 1 mol of NaOH reacts with 1 mol of HCl, to solve this problem what we need to do is calculate the number of NaOH moles contained in 0.1 liters of a 0.5 M solution:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.