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Coal as fired, contains 2.5% moisture. On the dry basis the coal analysis is as follows: carbon -80%, hydrogen- 6%, oxygen-8%, ash- 6%. The flue gas analysis. The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas.
The reactant concentration in a first-order reaction was 8.20×10?2M after 10.0s and 6.10×10?3M after 90.0s. What is the rate constant for this reaction
a tank with a volume of 1.00M3 is filled with air at 0 degrees to 20 times its atmospheric pressure. How much volume will occupy at 1 atom and room temp?
How many inner, outer, and valence electrons are present in an atom of each of the following elements
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of the HCl solution is 4.1 J/gK and the heat capacity..
constitutionally isomeric ketones that have the molecular formula C4H8O2
The bright-red color of highway safety flares comes from strontium ions in salts such as Sr(NO3)2 and SrCO3. Burning a flare produces strontium ions in excited states,
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E, ?H, and w for these processes
prepare 3.9L of a HCN/NaCN buffer that has a pH of 9.70 and an osmotic pressure of 1.27atm at 298K. What masses of HCN and NaCN should you use to prepare the buffer
The following pairs of solvents/solutions are not miscible. Which of the pair would sink to the bottom of the container?
Use the Causius Claperyon Equation to calculte the standard enthalpy of vaporization of ethnaol that its vapor pressure is 44.22 torr at 293 K and 350.8 torr at 333 K.
A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.8635 g of CO2 and 0.1767 g of H2O.
The element magnesium has 3 isotopes with the masses and natural abundances shown in the table. Mass of Isotope Natural abundance 23.98504 78.99 24.98584 10.00 25.98259 11.01 What is the average atomic mass of magnesium
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