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Mining engineers often have to deal with gases when planning for the excavation of coal. Some of these gases, including methane, can be captured and used as fuel to support the mining operation. For a particular mine, 2.4 g of CH4 is present for every 100. g of coal that is extracted. If 45.6% of the methane can be captured and the daily pro-duction of the mine is 580 ,metric tons of coal, how many moles of methane could be obtained per day?
How many moles of sulfur trioxide are formed from 3 moles of sulfur dioxide using the given balanced equation. 2 SO2 + O2 = 2 SO3
The HCl molecule is quite well described by the morse potential with hcDe=5.33 ev. v=2989.7 and xv+52.05 . Assuming that the potential is unchanged on deuteration , predict the dissociation energy of HCl and DCl
Calculate how much work is needed to perform the compression in the following scenario
Equal volumes of cold 4.184M NaOH at 20C and warm 4.184M HCl at 77.3C are mixed together in a highly efficient calorimeter. what is the final temperature of the solution
Describe how the leaving groups affects the rate of an Sn2 reactions Use specific chemical examples to support the conclusion
The concentration of the HCl solution is 0.1016 M HCl. What volume of 0.1338 M Ba(OH)2 would neutralize 50.00 mL of the HCl solution standardized in the situation above.
A slightly bruised apple will rot extensively in about four days at room temperature (25oC). If it is kept in a refrigerator at 4oC, the same extent of rotting takes about fifteen days. How long would it take for a slightly bruised apple to rot on..
a chemist makes a solution of 1.33 mol cacl2 and 800 kg water and then discovers that the freezing point of the
How many electrons are there in the pi antibonding orbitals of the (N2)+, (C2)2+, (Br2)2+ and (O2)+ cations
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.210 M HClO(aq) with 0.210 M KOH(aq). The ionization constant for HClO (4.0*10-8).
Determine the pOH (to two decimal places) of the solution that is produced by mixing 2.34 mL of 7.82×10-3 M MgO with 60.9 mL of 3.77×10-2 M MgH2.
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