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What is the rate law and rate constant for the decomposition of HF at 25 degrees Celcius2HOF decomposes to 2HF + O2
The heat combustion of acetylene, C2H2(g), at 25°C, is -1299 kJ/mol. At this temperature, ?H°f values for CO2(g) and H2O(l) are -393 and -286 kJ/mol
Compute the final temperature of the mixture (assuming no heat loss to the surroundings). The heat capacities of H2O(s) and H2O (l) are 2.08 and 4.18 J/g · °C, respectively, enthalpy of fusion for ice = 6.02 kJ/mol.
Why is HC2H3O2 not a good conductor or strong electrolyte?
Give the number of atoms of the specified element in a formula unit of each of the following compounds, and calculate the molecular (formula) mass
If 116g of butane burns in the presence of 320g of oxygen how much carbon dioxide will be produced
Describe Newman projection. Experiments have shown that for 1,2-dichloroethane, ClCH2CH2Cl, in carbon tetrachloride solution at 25C, 70% of the molecules are in the anti and 30% are in the gauche conformation
A muon is an elementary particle with a negative charge equal to the charge of an electron and a mass approximately 200 times that of the mass of an electron.
What is ?, the electromotive efficiency to three significant figures?? Open the hint panel below for the definition of electromotive efficiency. (d) What is the pH of an unknown that gives a reading of 19.6 mV with this electrode at 30°C?
the concentration of NO in teh vessel is 0.161 M. At equilibrium the vessel contains N2, H2O, and H2. What is the value of the equilibrium constant Kc for the following reaction? 2H2 (g) + 2NO(g) 2H2O (g) +N2 (g)
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.89?
The heat of fusion of ice(the heat associated with ice melting) is 6.0 kJ/mol. Find the temperature of the coffee after the ice melts.
When octane is burned in air, it chemically reacts with oxygen gas to produce carbon dioxide and water . What mass of octane is consumed by the reaction of of oxygen gas?
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