CHE220H1 Midterm: CHE220H1F_2017_APPLIEDCHEMISTRYI-INORGANICCHEMISTRY_E

• School: UTSG
• Department: Chemical Engineering and Applied Chemistry
• Course: CHE220H1
• Professor: All

Document Summary

Student no: - - - - - - - - - - - - - - - - - - Instructions: this is a type b examination. Only non-programmable calculators are allowed: all work is to be done on the pages of this booklet, when answering the questions please include all the steps of your work on these pages. Student no: - - - - - - - - - - - - - Silver is extracted from the ore-argentite (ag2s) through the process of cyanidation, using sodium cyanide (nacn). Please calculate the solubility of ag2s in the following systems. (the ksp of ag2s = 8. 0 x 10-51 ; kr{ [ag(cl\~2]-} = 2. 64 x 1034). In pure water: in 2. 34 m solution ofnacn, considering the complex ion { [ag(cn)2j-} formation. Name: - - - - - - - - - - - - - -