Sieving or winnowing? Why? 6. What are the different properties that you would consider to
separate a solid-solid mixture?
7. Two students are trying to separate 50 g of mixture of sand and
iron splinters by using a bar magnet. Kinley Wangmo spreads the
mixture on a sheet of paper. Wangchuk tries with a heap of the
mixture on a sheet of paper. Both use bar magnets to remove the
iron splinter from the mixture.
Reprint 2019
Chapter 3: Separating Mixtu
а.
Whose method of separation do you prefer? Why?
1.1.1
while doing this

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.