Chemistry, 15.12.2020 09:40 malikbryant2002
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The half life of Rn-222 is 3.8 days. If a basement holds 60 grams of Rn, how much will remain after 22.8 days?
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Chemistry, 22.06.2019 10:50
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Chemistry, 22.06.2019 13:30
Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.
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Chemistry, 23.06.2019 03:30
The semi-conductors on the periodic table are classified as
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Chemistry, 23.06.2019 08:40
Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.
Answers: 1
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The half life of Rn-222 is 3.8 days. I...
The half life of Rn-222 is 3.8 days. I...
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