Chemistry, 25.05.2021 20:10 swansondonovanp66got
A given mass of a gas occupies 919.0 mL in the dry state at
STP. The same mass when collected over water at 15°C and
750 mm pressure occupies one liter volume. Calculate the
vapor pressure of water at 15°C.
Answers: 2
Chemistry, 21.06.2019 23:50
Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.
Answers: 1
Chemistry, 22.06.2019 19:00
Which statement best describes what happens when molecular compounds melt
Answers: 1
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
A given mass of a gas occupies 919.0 mL in the dry state at
STP. The same mass when collected over...
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