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Hydrogen peroxide undergoes a first-order decomposition to water and O2 in aqueous solution. The rate constant at 25 °C is 7.40 * 10-4 s-1. Calculate the volume of O2 obtained from the decomposition of 1.00 mol H2O2 at 25 °C and 740 mmHg after 20.0 min.
A graduate student was studying enzymatic reduction of cyclohexanones. When the NADPH enzyme was used to reduce the following compound an optically active product was produced.
What is the final state of the system after 26.0 kJ of energy is removed from 150.0 g of water at 1 atm. The water has an initial temperature of 20.0?C . Cs(ice) 2.092 J/g?C Cs(water) 4.184 J/g?C ?Hfus ice 6008 J/mol
A weighing dish containing an impure sample of benzoic acide was found to weigh 12.35g. the weighing dish weighs 8.22g. The impure benzoic acid was recrystallized and thoroughly dried. The recrystallized benzoic acid weighed 2.48g. What is the per..
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
Why pure oxygen is often administered to victims of CO poisoning explain using le chatelier's principle. Hb (CO) aq + O2 aq is HbO2 aq + CO aq
It is common to see the the strength of aspirin tablets listed in terms of the number of grains of ASA per tablet. using the conversion factor of 15.4 grains per gram ASA,
When a container is filled with 3.00 mol of H2 , 2.00 mol of O2 , and 1.00 mol of N2 , the pressure in the container is 465 kPa. determine the partial pressure of O2?
Specify the organic solvent and aqueous solutions to be used for the separation. Provide the exact acid-base reaction that occurs during each step of the separation
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
Which of the following options give the correct relationships between the decimal prefixes? Select all that apply. Pay close attention to the sign and magnitude of exponent. -1 mL= 1x10^3 microliters -1GHz=1x10^6 Hz -10^3 kg=1 g -10^9 nm=1m -10ps=..
Iron combines with chlorine in a mass ratio of 1:1.27. How much iron remains after a reaction of10 g of iron and 10 g of chlorine
A total of 2.00 of a compound is allowed to react in a foam coffee cup that contains 130 of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 . What is the enthalpy of this reaction. Assume that no heat is lost to t..
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