Twelve dietary iron tablets were analyzed by the gravimetric procedure. the final mass of fe2o3 (fm 159.688) was 0.2774 ± 0.0018 g. find the average mass of fe per tablet. relative uncertainties in atomic masses are small compared with relative uncertainty in the mass of fe2o3. neglect uncertainties in atomic masses in this problem
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Physics, 22.06.2019 11:30
In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque
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Physics, 22.06.2019 12:30
Which levels of government establish and implement educational requirements for minors
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Physics, 22.06.2019 16:30
One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.
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Physics, 22.06.2019 17:00
Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.
Answers: 3
Twelve dietary iron tablets were analyzed by the gravimetric procedure. the final mass of fe2o3 (fm...