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Based on their activation energies and energy changes and assuming that all collision factors are the same, which of the following reactions would be fastest and which would be slowest?
(a) Ea = 45kJ/mol; E = -25 kJ/mol(b) Ea = 35kJ/mol; E = -10 kJ/mol(c) Ea = 55kJ/mol; E = 10 kJ/mol
A fishing boat accidentally spills 15.0 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 x 10^2 nm thick, how many square meters will the oil slick cover? Assume that the oil slick forms a ..
How many grams of KO2 are needed to react completely with 7.328 g of CO2.
A .692 L NaCl solution is diluted to a volume of 1.25 L and a concentration of 4.00 M. What was the initial concentration?
calculate the radius of a chloride ion. find values reported for the ionic radii or sodium and chlorine in a refernce book, and compare them with the values you determined. is the differnece significant?
Determine the boiling point of the solution If 11.9 grams of a nonelectrolyte with molar mass = 30.5 g/mol are combined with 200.0 grams of the solvent,?
How do you know when to draw a single/double/triple bond when drawing Lewis Structures? I need a good answer because I still don't understand Lewis Strucctures.
At a constant pressure of 1.50 atm what is the enthalpy change delta H for a reaction where the internal eneergy change delta E is 58.0 kJ
propose two reasons why the results of some of your reactions in this lab do not agree with what is predicted using the established solubility riles.
At equilibrium a 2L vessel contains .410 mol of H2, .130mol of Br2, and 36.0 mol of HBr. What is the equilibrium constant for the reaction at this temperature?
suppose that 2.00L of solution are made from 150. mg of citric acid, C6H8O7, A. what is the molar mass of citric acid? B. what is the molarity of citric acid in the solution?
Calculate how many calories of heat are needed to increases the temperature of 550 grams H2O from 12 degree celsius to 18 degree celsius?
Calculate the mass of propylene glycol that must be added to 0.360 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
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