[SOLVED] Titration Lab 1. The problem statement, all variables and given/known data How many grams of pure citric acid in the juice solution when 4.00 g of the juice crystals are dissolved in 100.0 mL solution? The juice solution is titrated using a given solution of sodium hydroxide. The NaOH is titrated into 10 mL of the juice solution at a time. Phenolphthalein is used as an indicator. Citric acid is 192.14 g/mol. The NaOH is 0.10 mol/L. Let's assume I had to use 50 mL of NaOH for the phenolphthalein to turn pink. 2. Relevant equations Not sure? 3. The attempt at a solution Unfortunately it's been a year and half since I did my last titration and I can't remember how to do this at all. I remember that I have to do a balanced chemical equation, but seeing as I don't know the chemical formula for citric acid I can't do that. I know that I had to add 0.005 mol of NaOH to the solution. (0.05 L * 0.10 mol/L NaOH). Also if 4 g crystals/100 mL of juice solution, then in 10 mL of the juice solution there would be 0.4 g of crystals. But how does any of this let me find the mol/L of acid??