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Explain the standard enthaply of formation of ammonia vapor at 298K is -46.11kJ/mol. Determine its standard enthalpy of formation at 360K, specified that the molar heat capacities of the reactants as well as products are given by Cp,m=a+bT+c/T2. Values for a, b, and c are 29.75, 25.1, and -1.55 respectfully of ammonia.
5H2C2O4 + 2KMnO4 --> 10CO2 + K2SO4 + 2MnSO4 + 8H20, How many g of H2SO4 are required to produce 75g of CO2
Calculate the cell potential after the following volumes of 0.1000 M Cr2+ is added to 50.00 mL of 0.1000 M Fe(CN)63-
calculate for the combustion of octane by using enthalpies of
Write the possible polymeric structure formed between sebacoyl chloride and butane-1,4-diamine, what is the appropriate name for this polymer
115 grams of KCl is dissolved in 750mL of water (assume density=1.005g/mL). What are the molality, molarity, mole fraction, mole percent, % mass, ppm by mass
Redraw the Lewis structure using overlapping valence bonds enclosing pairs to show that carbon and nitrogen obey the octet rule.
Calculate the value of the rate constant. Pick the choice from below which gives the correct reaction order and value of the rate constant for this reaction.
What would you expect the structure of the dinitro ester to be? Consider the directing effects of the ester and the first nitro group upon the addition
gold bars are plated from an aqueous solution of gold chloride (AuCl3) by using a current of 50 Amperes. With this current, how long would it take to plate out a 1 pound bar of gold worth almost $ 25,000? 453.59 grams weigh a pound.
At 40 degrees celsius the vapor pressure of methyl alcohol is 254 mmHg and at the same temperature the vapor pressure of ethyl alcohol is 135 mmHg.
A sample of 0.7500 g of a monoprotic weak acid, HA, is mixed in enough distilled water to produce 50.0 mL of a solution with a pH of 2.716. The solution is titrated with 0.1500 M NaOH, and in the middle of the titration, when [HA] = [A-]
Why do acid- and base-catalyzed elimination reactions often result in a mixture of products? Be specific. Hint - there is more than one reason.
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