Question

Calculate Ksp for each salt in an aqueous solution at 25 °C in which y = 0.0100 M. Use the table of Ksp values and a table of activity coefficients to solve this problem. KIO Ksp = Compound Formula Ksp barium phosphate Ba,(PO), 3.40 x 10-23| cobalt(II) phosphate Co,(PO), 2.05 x 10-35 lanthanum iodate La(10), 7.50 x 10-12 magnesium phosphate Mg, (PO), 1.04 x 10-24 potassium periodate KIO 3.71 x 10-4 scandium hydroxide Sc(OH), 2.22 x 10-31 silver thiocyanate AgSCN 1.03 x 10-12 yttrium iodate Y(103), 1.12 x 10-10 zinc carbonate Znco, 1.46 x 10-10 Sc(OH), Køp = Bag(PO4)2 Køp = 1

Answer 1

hiven that Temperature: 25° n = 0.0100 M (a) Kl04 (potassium periodate) in kisp of k104 K104 - 3.71 x 10 4 Kit + 04 : ksp Briti doo Activity cofficients for KID4 0.898 at and 0.01 0.900 are ionic strength respectively 3.71 x 10-4 :. KSP To: 898] [6.900 459 x 10-4 куба . .59 x 104 Rp Кр

- (b) ScoHz (scondium hydroxide): Ksp of scCOH) . 2.22 x 10 31 Se (OH), so +304 Activity coeffients for sc3 and oth are o. uur and 0.900 respectivelly. KSP 22-22 x 10-31 kisp: 3 set ( 73 in Se (OH)3 kap 10.445] [0.90073 68 x 10-31 | (C) +2 Baz(pou) (Barion phosphate): Ksp of Baz (pou) : 3.40 × 10 23 Barz (104)2 3 Bath + 2 pou 3 Activity coefficients of Bath and Pou are 0.67 and 0.395 respectively. - Ksp KSP & P Bota Ро. 5 3.40 x 10-23 (8.67)3 (0.39572 - 7. 24 x 10 Baz (PO4)2 ksp - 7.24 x 1022) - 22