DeXtEr 1i.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 (3ai) chromatography (3aii) Four (3aiii) Cottonwool (3aiv) IV (3bi) CuSO4 (3bii) CaO (3ci) Silica gel and CaO (3cii) drying agent as absorbent (9i.)white paper, burette, retort stand, flat bottom
flask
(ii) Parallax error, instrumental error,personal error (9b) (CA×11.4)/(9.9×14)=9/9 <b>Ca=9.999 mol/dm2.</b>