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The standard free energy of activation of a reaction A is 88.3 kJ mol-1 (21.1 kcal mol-1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol-1 (2.39 kcal mol-1) more stable than the reactants. (a) What is the standard free energy of activation of reaction B?
calculate and compare the enthalpy of monobromination and monochlorination for the given alkyl position
Nitrogen and Oxygen form an extensive series of oxides of general formual NxOy; at least 7 are known. One of them is a blue solid that comes apart reversibly in the gas phase. It contains 36.84% N and the rest is Oxygen. What is the empirical form..
0.101 M HNO2 solution contains 0.0067 M H+ ions at 25 oC. What is the percent ionization of this acid under these conditions
one mole of B at 2 bar are separated by a partition and surrounded by a heat reservoir. when the partition is withdrawn, how much does the entropy change?
a) H2 (g) + Br2 (g) â?" 2 HBr (g) + heat [0.513] [0.62] [0.346] b) N2O4 (g) + heat â?" 2 NO2 (g) [0.0325] [0.022] c) NH4SH (g) â?" NH3 (g) + H2S (g) + heat [0.027] [0.0234] [0.209] Calculate Ke for the following (equilibrium concentrations give..
How many moles of nitrogen are needed to react with 42 moles of oxygen?
Determine the final pressure, volume, temperature, and number of moles of gas when the volume is reduced by half at the time when gas is compressed? Use C p /C v = 1.3
Of the two materials VO and NiO, which would be expected to exhibit more metallic properties?
How many grams of O2 are contained in a 25.0 L sample at 5.20 atm and 28.0°C? 2. How many moles of gas are present in a 10.0 liter sample at STP? 3. How many grams are in 10.0 mEq of Ca2+?
A voltaic cell is constructed with an Ag/Ag+ half-cell and a Pb/Pb2+ half-cell. Measurement shows that the silver electrode is positive. Write balanced half-reactions and the overall spontaneous reaction.
A sample of ethanol (C2H5OH) has a mass of 38.6 g. How many carbon atoms does the sample contain?
When a 1.30-g sample of ethanol (alcohol) is burned in a calorimeter, the heat released increases the temperature of 870g of water in the calorimeter from 18.5 C to 28.9 C .
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