Question

Calculate the mass of KMnO4 required to react completely with 70.00 g NaCl in acidic media with the aid of the appropriate half-cell potentials listed in Appendix D. a. 18.94 g b. 28.51 g c. 6.172 g d. 37.86 g

Answer 1

giren: mass of knno required (x) to react with 70.0g of Nad în acedic medium. solution : 2 kmno, to Nacl +410 >2mnd, tonal ta KOH +3C1, from the above reaction it is clear that amoles of & moles 9 kmnby requires o moles g Nace to react. lie 2x 158.03 g 3 kmno, requires 6x58.44 9 9 Nall ixq oq kmnog requins 70 g of Nach >> X = 70X2 X 158:03 6x58.44 u mass of knno required to react with 70.0g of Nace is 63.09.g 3 - 63:09 g