[thefriedman94]

I have an equation that says

2K₂CrO₄ (aq) + 2HCl (aq) <--> K₂Cr₂O₇ (aq) + H₂O + 2KCl

What I'm trying to understand, though, is what the pH would have to do with making the equation shift. The question is asking what the pH would have to be in order to make it shift right, and what it would have to be to make it shift left. I can't figure out the connection between pH and the shift. Can anyone please explain to me how I would figure this out? Thank you.

[Schrödinger]

Since the LHS of the equation contains an acid...What happens when you add more acid (say HCl)? How is the reaction affected?

[thefriedman94]

Ah, I see! Adding more acid would make the pH more acidic, but also increase the concentration of the acid on the left side, causing the reaction to shift to the right. Thank you so much!