1. The problem statement, all variables and given/known data What mass of sodium bicitrate would be needed to prepare a 1.00 L solution with a pH of 5.42? 2. Relevant equations [H30+]=10^-pH 3. The attempt at a solution First of all, I don't know what sodium bicitrate is, so I can't write the equation for it. What's bicitrate? I wanted write the equilibrium expression for Ka. But I can only find the concentration of the [H30+] and not anything else... I have no idea how to do this question. Help please?