Hi, im planning a experiment alone, i  would like help at solutions calculations. for an experiment to determine the best sedimentation pH for iron ore using a pH meter and the following materials: 10 test tubes10 g of ore mass for each tube30 ml of waterNaOH HNO3  to perform the experiment at 10 different pH points, 2 - 4 - 5.5 - 6.5 - 7 -7.5 - 9 - 10 - 11.5 - 12: What is the calculation for preparing the solution?How much acid solution do I have to add to each test tube, in mass and volume?What precautions should be taken for this experiment?

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