Question

10. Calculate pH of a solution formed by 20.0 mL of 0.10 M HNO, after 19.9 mL of 0.10 M KOH are added. 11. Which salt in water is acidic, basic, or neutral? AICI, NaBr, K,SOa, NH4I 12. The formula of a coordination compound is Li[Co(NHs)2(H2O)Clh . [26 pt) a) Name the coordination compound. b) Point out formulas of ligands. c) What is charge of Co? What is coordination number of the complex? d) Sketch all possible geometric isomers, labeling cis/trans. e)

Answer 1

0.10 M koH and 19.9 ml 0.10 M MNO3 20 mi 10 madiauity ef millimres of HNO3 lelume X mo = 2 millimelis 20 ml x o. io M of milkinotes 1.94 millimoles o =1.99 mullimols wei react wrth 199 mullomels of HNO3 9,9 X 0.10 no yamaining millimeles 3 0.01X0 mel 2.506X10M (20+19.9) L 5 3.6 Nabr amd K2s0a are nutral n watir in watir Aatve water u basic NH4I is basic n uhium diamineayuatuchlerecobaltate (I) (a) igands: (b) amune wate (oragua) cnlorime (C) dharge of io is 1 Coreedinatin no the (d) geemutucal isomers NM3 (e e NMs NH2 e NH3 thans- isemer cis isorme us-is omer