Answer to Question #162036 in General Chemistry for Ebrahim Sallam

Question

What volume (in mL) of 40% II,PO, solution (p=1,25 g/cm) is necessary to prepare 400mL of 0,25N of phosphoric acid solution (p=1g/em?)? Calculate the mole fraction of II,PO, and molarity of the obtained solution.

Answer 1

Volume = 0,204 ml

molarity = 0,0026 mol/l

mole fraction = 4,5*10^-5