okay. i did a lab in chemistry where i have to find the optimum volume of the percipitate. i found it, but now i have to convert it to a mole ratio. how do i do that? btw, we did two experiments.
Here are the optimum volumes of the percipitate and the reactants as well:
Fe(NO3)3 & NaOH: 14.2 mL Fe(NO3)3, 46.8 mL NaOH ;; 19.8 mL of precipitate [Fe(OH)3].
CuCl2 & Na3PO4: 34 mL CuCl2, 26 mL Na3PO4 ;; 31.0 mL precipitate [Cu3(PO4)2]
so now what do i do? i can't do anything since everything is in like mL and so... i'm kind of stuck. this is due tomorrow, so please help me ASAP. thank you so much! :]
P.S. Please show the steps otherwise i'd get confused and lost... thanks! And btw, you're supposed to find the stoichiometric mole ratio for each reaction and then the chemical equation. X]
PLEASE PLEASE PLEASE. i am seriously desparate now. T_T
2006-09-10 10:59:06 · 2 answers · asked by sooper mouse! 2 in Science & Mathematics ➔ Chemistry
You need the concentration values for each solution used throughout the experiment. These values cannot be calculated-- you have to ask the person in charge of the lab for the values.
2006-09-10 11:05:33 · answer #1 · answered by Illusional Self 6 · 0⤊ 0⤋
FIrst off, you must've gotten some molarities on these solutions you used, right? If that were the case, then you can easily find out the mole content of each of your reactants, determine the limiting reagent and then determine theoretically how much of your preciptate you would've gotten according to the balanced equation.
Assuming that your reaction went to completion is a pretty valid assumption you can do since you can assume your preciptates do not go back into solution appreciably.
2006-09-10 11:05:09 · answer #2 · answered by seikenfan922 3 · 0⤊ 0⤋