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The solubility of ammonium formate, NH4CHO2, in 100g. of water is 102 g at 0 degrees celsius and 546g at 80 degrees celsius. A solution is prepared by dissolving NH4CHO2 in 200 g of water until no more will dissolve at 80 degrees. the solution is then cooled to 0 degrees. What mass of NH4CHO2 precipitates assuming no water evaporates and the solution is not supersaturated?

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