Chemistry, 09.12.2020 01:00 QueenNerdy889
When a piece of aluminum with density D= 2.7 gm/mL is placed in a 25 mL graduated cylinder that contains 10.5 mL of water , the water level rises to 13.5 mL. What is the mass of the aluminum?
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How air particles exert a pressure on the inside of the balloon
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What is the percentage of hydrogen in nitrogen trihydride
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Chemistry, 22.06.2019 13:30
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
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Chemistry, 22.06.2019 21:40
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.
Answers: 2
When a piece of aluminum with density D= 2.7 gm/mL is placed in a 25 mL graduated cylinder that cont...
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