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The activation energy for a reaction is 84.0kJ/mol. Addition of a catalyst lowers the activation energy by 15.0 kJ/mol. By what factor (k catalyzed/ k uncatalyzed) does the rate increase at 25 °C?
Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron is produced when 25 mol of hematite reacts with 30 mol of carbon monoxide? with the balanced equation of Fe2O3 + 3CO = 2Fe + 3CO2
3.00×10-3 mol of HBr is dissolved in water to make 17.0 L of solution. What is the concentration of hydroxide ions, OH-, in this solution?
The volume of a sample of a gas at 273 degrees Celsius is 200.0 L. if the volume is decreased to 100.0 L at constant temperature, what will be the new temperature of gas?
Use the initial volume of acetic acid, the volume of NaOH required to reach the equivalence point and the value of the molarity of NaOH that you obtained when you standardized this solution against KHP in the strong-acid/strong-base experiment to ..
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?
what is the molarity of a saturated solution of AgOH with a Ksp = 2.0 x 10^ -8
An oil bath maintained at 50.5oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
What atomic or hybrid orbitals make up the sigma bond between Br and Cl in bromine trichloride, BrCl3 ?
The reactant concentration in a first-order reaction was 6.70×10-2 after 25.0 and 3.30×10-3 after 100 . What is the rate constant for this reaction?
Cobalt Chloride in varying concentrations Spectrophotometer set to a Wavelength = 510 nm % Transmission = experiment #1 = 31.62, experiment #2 = 89.13 and experiment #3 = 98.86
DNA double helix has the sequence GATCGATTAC, what is the sequence of the other DNA strand?
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