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A certain reaction with an activation energy of 185kj/mol was run at 455k and again at 475 . What is the ratio of f at the higher temperature of f at lower temperature? one significant figure
How many grams of oxygen are collected in a reaction where 235 mL of oxygen gas is collected over water at a temperature of 25 ^circ {rm C} and a total pressure of 704 torr?
given the equation 2C2H6(g)+7O2(g)->4CO2(g)+6H20(g) How many grams of oxygen are needed to react with 4.00 moles of C2H6?
If we add a solid aluminum cylinder to a graduated cylinder containing 19.2 mL of water, and the water level in the cylinder rises to 24.7 mL, what is the mass of the aluminum cylinder?
Determine the concentration of an unknown hydrochloric acid solution that requires 70.5 mL of 1.6 M barium hydroxide to completely neutralize
To the organic chemist, mass spectrometry is especially useful in the determination of the structure of a new compound because it provides information about
How many milliliters of 0.105 M HCl are needed to titrate 50.0 mL of a solution that contains 1.25 g of NaOH per liter?
Write the complete ionic equation for each reaction that produced a precipitate? Write the net ionic equation for each reaction that produced a precipitate?
My lab is of an iodine clock reaction. I am being asked to calculate the initial rates for experiments 1, 2, and 3 from delta [S2082-]/ delta time. I know how to use the initial rate method however I am confused on how to obtain the initial concen..
Assuming it behaves as an ideal gas, calculate the temperature of a sample of C3H6 whose molecules have a root mean square molecular
How many valence electrons does one molecule of aspartame have? What are the bond angle measurements of aspartame?
the density of thiophene, C4H4S is 1.065 g/mL. A solution is made by dissolving 15.0 g of thiphene in 250.0 mL of toluene. Calculate the Molarity
Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane
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