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Explain how many molecules in a liter of oxygen under ambient pressure have an energy of at least 2 meV, 20 meV, 200 meV, 2 eV, 20 eV, 2 kJ/mol, 20 kJ/mol, 200 kJ/mol, 2000 kJ/mol at the 0C, 20C and 100C?
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
a 5.00 gram sample of potassium chlorate/potassium chloride mixture was heated in a test tube. A total of 1.00 L of oxygen gas was collected over water at 25 degrees c and 741 torr. determine the percentage of potassium chlorate in the mixture.
The sample is not completely thermally decomposed in the procedure. Will the mole ratio of CaO to CO2 be too high or too low? Explain
How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg + O2-> MgO
Calculate the concentration of sugar in % (w/v) for a 250mL solution that contains 4.32g of sugar
What is the system that is buffered, what is the pH of the system and what compounds are responsible for the buffered system?
The final temperature of the mixture is 27.0 degrees celsius. What is the heat capacity of the unknown substance?
The heat capactiy of the calorimeter is 1630 J/degrees celsius, and the inital temperature was 24.58 degrees celsius. What was the final temperature in degrees celsius?
If you have 50 ml of a buffered solution of 0.15M HNO2 and 0.05M NaNO2, how many ml of 0.2M HCl can you add before the pH changes significantly
What are 3 most significant structural differences between HPLC equipment and Ion Chromatography instruments
If you mixed 75 ml of 2 M HCl with 37.5 ml of 4 M NaOH, how many joules of heat would be released? How much would the temperature of the solution increase?
Metabolism of one mole of glucose, C6H12O6, releases 6.70 × 102 kcal. How much heat is released by the combustion of 50.0 g of glucose?
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