How to carry out gravimetric analysis

Suppdse you wanted to analyse the amount of metal in an alloy. For example, you might want to determine the nickel content, as a w/w percentage (p. 47), in a particular sample of steel. 

Filter the precipitate through a pre-weig ed Gopch crucible. This should have been previously dried in. an oven,at 120 C and stored in a desiccator until required. 

Wash the precipitate in thi example, the nickel dimethylglyoximate can be washed with.cold water until qualitative testing shows.that the wash sgju-. tion is free of chloride ions. a 

Determine the weight of the precipitated com- pound. Suppose in this example that the.nickel had 

According To the above equation, for each molejot Ni in the steel sample, 1 mole of precipitate will be formed. Therefore,-0.2370 g of precipitate correC spends to - 

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