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Considering the given thermochemical equation 2NO(g) + O2(g) → 2NO2(g); in which ?H° is given = -114.4 kJ, then determine how much heat is released at constant pressure if 471.0 g of NO2 is produced,?
Determine How hot should be the air in a ballon be heated if it has initially a volume of 750. L at the temperature of 20 degree celsius and the final volume must be 1,000.l
The temperature of the H 2 O is 26.55 degree celsius. Determine how much heat is evolved per gram of fuel burned?
Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these conditi..
A solution containing 10.mmol of CO3^-2 and 5.0 mmol. Of HCO3- is titrated with 1.0M HCL What total volume of HCL must be added to reach the second equivalence point?
To find the % by mass of a compound in a given sample - Determine the percent by mass of calcium carbonate in the sample. State any assumptions.
Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?
Using a sample that was dissolved in CH 2 Cl 2 , mixed alumina, evaporated the CH 2 C l2 , loaded and began to run his column, starting with C 6 H 14
The formal charge on the P atom is zero and It is best described with three resonance structures.
Explain the process of reduction when referring to metals within the earth. It is possible to have glass and asbestos with identical composition, and yet one is considered hazardous and the other is not.
Considering the molecule HOOH. What happens to the overlap in the σ bond between the 2 O atoms as one hydroxyl group is rotated in a clockwise relative to the other hydroxyl group?
Determine the pH of the solution resulting from the combination of 40.0 mL of 0.200 M Perchloric acid and what is the mass in mg
calculate the estimated ratio of the protonated form of acetylsalicylic acid to the deprotonated form of aspirin at equilibrium in the stomach? acetylsalicylic acid(Aspirin) is a weak acid with a pKa = 3.4, Stomach acid has pH = 1.4.
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