!30   2. which of the following statements are true about a strong base and a weak base at a ph of 11? hcl will not bring the ph of either solution to ph 7. both bases require the same amount of hcl to reach ph 7 because they are both at the same initial ph. the weak base will require less hcl to bring the ph to 7 than the strong base. the strong base will require less hcl to bring the ph to 7 than the weak base.

The answer is "The weak base will require less HCl to bring the pH to 7 than the strong base." Using titration curves, both bases will require the same amount of HCl to reach equivalence point but they will have different pH values. A strong acid like HCl will react with a strong base to form a solution with pH equal to 7 while HCl will react with a weak base to form a solution with pH less than 7. Hence, the weak base will require lesser HCl to bring the pH to 7.

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.