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Prelab Questions 1. a. (10) Determine the a) mass of the solute and b) volume of conc. HCl you are going to a) weigh out and
Procedure - External Standards 1. First make 2% V/v HCI. You will make this three times. Transfer to two plastic containers (
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=> 1 ppm = 1mg/it - i.e. 1 ppm soln means long of solute u . dissolved in 1lt of water (solution) 100ppm = roomg of more i diIf you still have any query feel free to ask in the comments and if you like my work please give a thumbs up.

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