Chemistry, 28.07.2019 23:30 martinezlittleman
1. what is the volume of 0.900 moles of an ideal gas at 25.0° c and a pressure of 950.0 mm hg? 1.50 liters 17.6 liters 18.0 liters 34.2 liters2. what is the pressure, in mm hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° c? 84.2 mm hg 289 mm hg 617 mm hg 936 mm hg3. when 12.4 grams of kbr are dissolved in enough water to create a 170-gram solution, what is the solution's concentration, expressed as a percent by mass? 6.2% kbr 6.8% kbr 7.3% kbr 7.9% kbr
Answers: 1
Chemistry, 21.06.2019 18:00
Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly
Answers: 2
Chemistry, 22.06.2019 04:50
Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?
Answers: 1
Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
1. what is the volume of 0.900 moles of an ideal gas at 25.0° c and a pressure of 950.0 mm hg? 1.50...
Mathematics, 18.01.2020 00:31
Mathematics, 18.01.2020 00:31
Chemistry, 18.01.2020 00:31
Mathematics, 18.01.2020 00:31
History, 18.01.2020 00:31
Mathematics, 18.01.2020 00:31
Geography, 18.01.2020 00:31
Chemistry, 18.01.2020 00:31