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A mole of hydrogen gas was found to have an average De Broglie's wavelength of 1A (10^-10m), the approximate length of the H-H bond. What temperature is the gas kept at?(calculate the average square velocity or kinetic energy).
Ephedrine was once used in diet pills that could be purchased without a prescription. Ephedrine is composed of 72.7% C, 9.15% H, 8.49% N, and 9.68% O.
Write the equation(s) that describe the synthesis of (NH4)2PbCl6 starting from Pb(II) [i.e Pb(NO3)2]. Hint:There is a redox reaction in the first step, where the bleach (ClO^-) is the oxidising agent.
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water
The Ka of phenol, C6H5OH, is 1.00 x 10-10. What is [OH-] in a 0.874 M solution of phenol? Use E notation and 3 significant figures.
prepare a schematic diagram of the work up procedure, including the column chromatography with acetylferrocene, diacetylferrocene, ferrocene
what volume of 0.366M Ni(NO3)2 is required to completely react with 55.8 ml of 0.500M Na2CO3.
The equilibrium constant Kc for this reaction is greater than one. based on this information, which of the following statements is correct. A- anion is a stronger acid than HB.
Write the chemical equation for the formation of CH from H and C atoms. Lone pairs do not need to be included. Then Using the table of bond energies determine the ?H for the above reaction.
Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the following equation: CH4(g)+H2O(g)?CO(g)+3H2(g) In a particular reaction, 26.0L of methane gas (measured at a pressure of 734torr and a temp..
How many grams of benzoic acid (C6H5COOH) are contained in a 100.0 mL solution at 0.39 M concentration?
Determine the theoretical and percent yields of ethanol if 684g sucrose undergoes fermentation and 349g ethanol is obtained?
25.0 mL of ethanol (density = 0.789 g/mL) initially at 5.4°C is mixed with 34.6 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
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