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A mixture of KCl and KClO3 weighing 1.55 grams was heated the dry O2 generated occupied 1.4x102 ml at STP. What percent of the original mixture was KClO3 which decomposes as follows: 2KClO3---> @KCl+3O2
What is the pressure in the cell? The volume is reduced until the cell is essentially full of liquid n-butane with only a few bubbles of n-butane gas remaining. What is the pressure?
10.00 mL of a solution containing 0.17 M NaCl and 0.23 M AlCl3 is introduced into a fully charged cation exchange column. How many moles of hydronium ions will be released by the column?
Predict the delta H, delta S, delta V and delta G for dissolving 60. g benzene (C6H6) in 100. g of toluene (C7H8) at 298 K. State any assumptions made.
Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120 C. Explain.
A gas sample was collected over water at 25.3 degrees C. The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected
A 4.80 g nugget of pure gold absorbed 279 J of heat. What was the final temperature of the gold if the initial temperature was 22.0°C? The specific heat of gold is 0.129 J/(g·°C).
A vapor composed of 0.75 mole fraction ethanol and 0.25 mole fraction acetic acid at 120.0 mm Hg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
What is the concentration of HNO3 if 9.20×10?2 mol are present in 825 mL of the solution
For the elementary processes whose equations are given below, determine whether each is unimolecular or bimolecular and determine the rate law for each process.
Choose the selection which gives the correct number of and bonds present in one molecule or ion of ozone, O3. Make the central atom in your Lewis structure follow the octet rule if possible.
a hydrated compound has an analysis of 18.29% Ca 32.37% CI and 49.34% water. what is the empirical formula?
Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
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