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In the subsequent reaction CH4+CH4 arrow CH3CH3+H2 two C-H bonds are broken(bond energy =412 kj/mol) to form a new C-C bond (bond energy=348 kj/mol and a new H-H bond(bond energy=436 kj/mol). Approximate the enthalpy in this reaction. Is it endothermic or exothermic: For exothermic reactions the combined energies of the new bonds must be larger than the combined energies of the broken bonds. Balanced the subsequent unbalanced reaction and compute its standard free energy change (under standard reactions). Define whether the reaction is spontaneous or nonspontaneous under standard conditions C2H5OH(l)+O2(g) arrow CO2(g)+H2O(l) C2H5OH(l) O2(g) CO2(g) H2O(l) deltaH kj/mol -277.7 0 -393.5 -285.8 deltaG kjmol -174.8 0 -394.4 -237.1
Calculate the mass of I2 produced at the anode if a current of 2.85 A is passed through a solution of KI for 56 minutes.
Define the comparative reactivity and hazards of NaBH4 as compared to LiAlH4. As well, compare the different results while they are added to A) water; B) ethyl acetate; C) methanol.
Calculate the final volume of a 0.500 L gas container that increased in temperature from twenty six degree Celsius to sixty degree celsius while the pressure increased from 760 torr to 1170 torr?
A 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are treated with water, 2.813 g of gaseous ammonia are generated.
In a separate experiment, it was found that for equal concentrations of element X as well as the standard the response for element X was 0.930 times intense as the standard. Explain what is the concentration of element X in the unknown expressed a..
If 60.0 g of H3PO4 is dissolved in enough water to form 175 mL of solution, what is the molarity (M) of the solution
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Compute the number of grams of each chemically unique mono chlorinated product. You may ignore stereoisomers. You must show all necessary computations to earn credit
One of the more common agents for standardizing solutions of potassium hydroxide (KOH) is potassium acid phtalate (KHC8H4O4), or, more accurately, potassium hydrogen phthalate.
Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines
Write the correct equation accounting for the ready formation of metallic deposit on placing a magnesium strip into 0.1 M iron nitrate
Calculate the amoun of NO2 in moles present at equilibrium. Calculate the percentage of the original N2O4 that is dissociated
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