2014/2015 Neco Gce Chemistry Practical Solutions 1ai.white - TopicsExpress



          

2014/2015 Neco Gce Chemistry Practical Solutions 1ai.white paper, burette, retort stand, flat bottom flask ii. Parallax error, instrumental error,personal error 1b (CA*22.5)/(0.1*25)=1/1 Ca=0.111 mol/dm3 1bii. 0.111= 4.05/rmm rmm =36.5g/mol 1ci. By mixing the pellets of 0.28g in water ii. Preparation of salts Production of fertilizer ======================== 2i. Green ppt green ppt soluble in excess fe2+ confirmed ii. Fe2+ confirmed iii. Brown ppt iv. White ppt 2v. Zn2+, pb2+, al3+ suspected vi. Zn2+ confirmed vii. White ppt - zn2+ confirmed 2b. Release of ammonia FROM: expowap BBM: 7e19628b
Posted on: Mon, 03 Nov 2014 14:15:15 +0000

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