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Nitric acid is a component of acid rain that forms when gaseous nitrogen dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous nitric acid. Write a balanced chemical equation for this reaction.
Change in heat content We write H = Hfinal - Hinitial or for chemical reactions H = Hproducts - Hreactants Given this equation, What sign is H for exothermic reactions? What sign is H for endothermic reactions?
2.00 L of H2 at a pressure of 368 torr and 1.00 L of N2 at an unknown pressure. If the total pressure in the flasks is 336 torr after the stopcock is opened.
The dimensions of aluminum foil in a box for sale in supermarks are 66 2/3 tards by 12 inches. the mass of the foil is 0.83kg. If its density is 2.70g/cm^3
Bromine can form compounds or ions with any number of fluorine atoms from one to five. Write the formulas of all five of these species
If you dilute 750.00 mL of a 4.117 × 10-4 M solution into a 2.00 L volumetric flask and fill to the line with water, what would be the final concentration of the solution?
A solution of ammonia and water contains 2.10×1025 water molecules and 5.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Calculate the pH of a buffer solution formed by adding 28.75 grams of sodium lactate (NaC3H5O3) to 450.0 mL of 0.550 M lactic acid (HC3H5O3) solution
Glucose is approximately .10 % of human blood, by weight. Glucose has a formula weight of 180 g/mol. What is the conc of glucose in ppm
indicate whether each are activating or deactivating, and whether each are ortho para or meta directing substituents.
the atomic mass of chlorine is listed as 35.454 amu on the periodic table. it has two naturally occurring isotopes, Cl-35 and Cl-37. what are the approximate percentages of each?
Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 degrees C are converted to 50 grams of ice at -125 degrees
Solutions of sodium thiosulfate are used to dissolve unexposed AgBr ( Ksp= 5.0E-13) in the developing process for black-and-white film. What mass of AgBr can dissolve in 1.00L of 0.500M Na2S2O3?
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