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A miniature volanco can be made in the laboratory with ammonium dichromate. When ignited, it decomposes in a fiery display. (NH4)2Cr2O7(s) ? N2(g) + 4 H2O(g) + Cr2O3(s) If 0.95 g of ammonium dichromate is used and the gases from this reaction are trapped in a 15.0 L flask at 23 °C, what is the total pressure of the gas in the flask? What are the partial pressures of N2 and H2O?
A 3.00-L flask is filled with gaseous ammonia,NH3 . The gas pressure measured at 20.0 deg C is 2.05 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
A 10 mL sample of a solution of Pb(ClO3)2 was diluted with water to 21 mL. A 10 mL sample of the dilute solution was found to contain 0.021 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution?
what is the relationship between the structure of the fabric molecule and the intensity with which the azo dyes color the fabric?
Rank the following hydrogen atom transitions in order of increasing energy of light produced ( from lowest energy light produced to highest energy light produced).
calculate the resulting molarity when 50.0ml of 2.13M sodium Chloride solution is mixed with 80.0ml of 1.45M
10 g of potassium chlorate, KClO3 is decomposed producing 3.915576 g of oxygen gas and 6.083363 g of potassium chloride, KCl: 2KClO3 + heat -> 2KCl + 3O2. Based on this information, what is the GMW of the oxygen produce
A 30.0 mL sample of a diprotic acid is titrated with 0.255 M KOH. If 59.5 mL of base is required to reach the second equivalence point
If 15 grams of copper(2) chloride react with 20grams of sodium nitrate, how much sodium chloride can be formed
Two parallel disks having diameters of 50 cm are separated by a distance of 10 cm. One disk also has a 20-cm-diameter hole cut in the center. Find the shape factor from the disk A1 to the one without a hole A3.
Which of the following combinations of n and l represent real orbitals and which are impossible? 4s 3p 3f 2p
Rank the following redox-active coenzymes and prosthetic groups of the electron-transport chain in order in increasing affinity for electrons. Use 1 for the species with the lowest electrn affinity and a 5 for the highest affinity. Explain how you..
what is this equation and why is it central to the global warming theory: SO2(g) + H2O(l) H2SO3
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