47. Using the data in Table. 1, write the reaction equations used in the analysis and calculate:
a) sample size for analysis (g);
b) amount of precipitant (ml);
c) the value of the analytical multiplier (conversion factor);
content of the analyte (or element) in the analyzed object (g or %).
No.
p/p
Analyzed object Defined
substance Scheme of analysis Precipitator Weight
weight
forms besieged
sediment shape
47 FeCl3∙6H2O, containing about 75% of the main substance Fe FeCl3→Fe(OH)3→Fe2O3 4% ammonia solution NH4OH 0.1452 Amorphous

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