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HSE Chemistry Questions
Coal gasification electric power plants are now operating commercially in the United States and in other nations. This technology produces clean-burning hydrogen that can be transferred to customer facilities by pipeline. Hydrogen can also be transported in bulk by highway or rail.
1. If there is a spill of liquid hydrogen, why will it likely burst into flame spontaneously?
2. Why do experts recommend the use of a thermal-imaging camera for detecting a hydrogen leak from a pipe fitting connected to a steel cylinder of hydrogen?
Coal is mined worldwide for use mainly at power plants to generate electricity.
1. Discuss why coal in a crushed, granulated, or pulverized form spontaneously combusts? In addition, what health effects are associated with coal dust?
2. Another form of carbon is activated carbon. Discuss what activated carbon is, and provide at least two of its industrial or medical applications.
Draw the chemical structure ( including all atoms and bonds) for the compound with the systematic name:6,7-dichloro-5-methyl-4-transaminophenyl-cis-2-heptane-ol
If I mix 11.0 g of sulfuric acid in 1 L of water and add 5.00 g of lead, what would be the equilibrium concentration of hydrogen gas if the total volume in the beaker is 2 L
Survival of trout needs water in which the oxygen concentration is greater than 5 ppm. A 100-mL sample of lake water was examined according to the method outlined in question 6 with the liberated iodine requiring a 9.72mL titration with 0.01235 M ..
sodium-24 is a radioistope with half life of 15 hors. a sample of pure sodium-24 has an inital mas of 400.0g. what mass
Describe the technique used to determine the density of approximately 5 gram samples of the following at 20 degrees C and 1 atmosphere pressure: A) Gasoline B) Granular Sugar C) A lump of gold D) Mercury
a small body was launched up an inclined plane set at an angle alpha 15deg against the horizontal. find the
In combustion studies of the use of H2 as an alternative fuel, HO is sometimes formed in flames by the reaction
a student adds 4.00g of dry ice solid co2 to an emptyballoon. what will be the volume of the balloon at stp after
An automobile tire is inflated (while cold) to a volume of 11.8 L and a 'gauge pressure' of 36.0 psig at a temperature of 12oC. Driving on a hot day, the tire warms to 65oC and its volume expands to 12.2 L.
The total pressure of the container after the water condenses (5C) is .857 atm. What are the partial pressures of the 4 gases at 5C. e)What was the temperature of the container in Kelvin before it was cooled to 5C?
liquid butane c4h10 is stored in cylinders to be used as a fuel. suppose 30.4 g of butane gas is removed from a
Find the ratio of the rms speed of He to that of Xe at 30 degrees Celsius. Find the average kinetic energy per mole of He and Xe at 30 degrees Celsius. enter your answers in scientific notation.
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