Module 7 Unit 2 Assignment A

MODULE 7 UNIT 2 Assignment Part A 1. Predict whether the following compounds are soluble or not soluble. Provide the line in the solubility chart that you used to support your answers. a) lead(II) sulfate – insoluble, line 7 and 4 b) cobalt(II) chloride – soluble, line 6 c) mercury(I) nitrate – soluble, line 4 and 2 d) silver sulfate – insoluble line 7 e) copper(II) sulfide – insoluble line 8 Total 5 marks 2. Write dissociation reactions for the following soluble compounds: (2 marks each) a) Sodium acetate --- CH 3 COONa  Na(aq) + + CH 3 COO(aq) - b) Ammonium sulfate --- (NH 4 ) 2 SO 4  2NH 4 (aq) + + SO 4 2- c) Potassium carbonate --- K 2 CO 3  2K(aq) + + CO 3 (aq) 2- d) Sodium hydroxide --- NaOH  Na(aq) + + OH(aq) - e) Calcium nitrate --- Ca(NO 3 ) 2  Ca(aq) 2+ + 2NO 3 (aq) - f) Zinc chloride --- ZnCl 2  Zn(aq) 2+ + 2Cl(aq) - g) Silver chlorate --- AgClO 3  Ag(aq) + + ClO 3 (aq) - h) Ammonium phosphate --- (NH 4 ) 3 PO 4  3NH 4 (aq) + + PO 4 (aq) 3- i) Potassium chloride --- KCl  K(aq) + + Cl(aq) - 18 marks Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit. Include references. 1