Answer to Question #241580 in General Chemistry for nicole

Question

Use the equation: PI₃ + 3H₂O → 3HI + H₃PO₃ to determine the number of grams of HI that will results from the reaction of 5.00 g of PI₃, assuming complete reaction?

Answer 1

PI3 + 3 H2O → H3PO3 + 3 HI

150 grams of PI3 (MM=411.7 g/mol) is added to 250 milliliters og H2O (MM=18.01 g/mol),

Mole ratio = 1:3:1:3

(150)(3) = 450g of H2O

Therefore = 250/450= 0.56moles

Therefore H3PO3 = 1:3

( 0.56 moles/3) =0.1852moles

(0.1852)(81.99) =15.18grames