5. Using YOUR data for this experiment calculate your answers and fill in the following table. (Show your work for the calculation below the table.) (7 marks) Unknown Sample Number Average mass of the precipitate MgNH₂PO4-6H₂O (s) / g Average phosphate concentration in water sample (mass/volume %) % difference of 2 trials Show your work below or attach work sheets:

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.