Describe a situation in which solutions of a strong acid and a weak acid can have the same PH. Please provide an example.

Question

hugsnotughs · Answer

Hm...I learned about Ph, but not about when they can both have the same levels.  Sorry I can't help. :c

abb0t · Answer

at equilibrium point

asib1214 · Answer

so if i add both strong and weak acids in a solution, lets say HCl and H2CO3. Why does the weak acid doesn't effect the stronger acid and what is happening at the molecular level. And lastly what if i add a stronger acid than HCl.

abb0t · Answer

when you have an acid, and it's conjugate base, in this case, the carbonic acid, and it's bicarbonate, you essentially have a buffer. a buffer can resist pH change because the two components (H$_2$CO$_3$ and HCO$_3$) are both present in amounts at equilibrium and able neutralize small amounts of other acids and bases (in the form of H$_3$O$^+$ and OH$^-$).