4. A 0.6025 g sample of a chloride salt was dissolved in water and the chloride precipitated by adding excess silver nitrate. The precipitate of silver chloride was filtered, washed, dried, and found to weigh 0.7134 g. Calculate the percentage chloride (C) in the sample.

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4. A 0.6025 g sample of a chloride salt was dissolved in water and the chloride precipitated by
adding excess silver nitrate. The precipitate of silver chloride was filtered, washed, dried, and
found to weigh 0.7134 g. Calculate the percentage chloride (a) in the sample.
5. The phosphorus in a sample of phosphate rock weighing 0.5428 g is precipitated as
MGNH4PO4 .6H,0 and ignited to Mg;P2O7. If the ignited precipitate weighs 0.2234 g.
Calculate (a) the percentage of P,0s in the sample; (b) the weight of the precipitate of
MGNH,PO . 6H,0.
Transcribed Image Text:4. A 0.6025 g sample of a chloride salt was dissolved in water and the chloride precipitated by adding excess silver nitrate. The precipitate of silver chloride was filtered, washed, dried, and found to weigh 0.7134 g. Calculate the percentage chloride (a) in the sample. 5. The phosphorus in a sample of phosphate rock weighing 0.5428 g is precipitated as MGNH4PO4 .6H,0 and ignited to Mg;P2O7. If the ignited precipitate weighs 0.2234 g. Calculate (a) the percentage of P,0s in the sample; (b) the weight of the precipitate of MGNH,PO . 6H,0.
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