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The activation energy of a certain reaction is 32.3kJ/mol . At 20 degrees C, the rate constant is 0.0130s^-1.At what temperature would this reaction go twice as fast? The equation that is given is ln(K2/K1)=Ea/R((1/T1)-(1/T2)) a. what is R in this equation? What would the answer be
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
A box of volume 20.0 L contains 1.50 moles of an ideal gas. This gas initially consists of a single molecular species, X (molar mass of 42.0 g/mol), at a temperature of 25.0 °C.
An aqueous solution is made by dissolving 24.5 grams of manganese(II) chloride in 466 grams of water.
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins.
if the radio waves transmitted by a radio station have a frequency of 70.6 Mhz, what is the wavelength of the waves, in meters?
a Oxygen is a common oxidizing agent in nature. What changes in the oxidation number of oxygen must occur if it is to be an oxidizing agent? explain
Draw all stereoisomers having molecular formula C6H12 that contain one double bond and give the IUPAC name for each compound.
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL
A compound A(C6H6) undergoes catalytic hydrogenation over lindlar catalyst to give a compound B, which in turn undergoes ozonolysis followed by workup with aqueous H2O2 to yield succinic acid and two equivalents of formic acid.
Atomic orbitals of carbon relative to methane in a cubic frame of reference.
the density of liquid octane, H8H18, is 0.7025g/ml. if 1.00ml of liquid octane is vaporized at 100 degrees 100'c and 725 torr, what volume does the vapor occupy?
calculate the energy lost when 75.0 g of water cools from 86.4 degrees celcius to 2.1 degrees celcius
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