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A. Explain how much heat is released when 25.0g of methane burns in excess oxygen to form gaseous CO2 and H2O?
B. Compute the temperature of the product mixture if the methane as well as air is both at an initial temperature of 0.0 degrees Celsius. Presume a stoichiometric ratio of methane to oxygen from the air, with air eing 21% O2 by volume c of CO2 = 57.2 J/mol k; c of H2O(g) = 36.0 J/mol k; c of N2 = 30.5 J/mol k.
A pure titanium cube has an edge length of 2.68 . How many titanium atoms does it contain. Titanium has a density of 4.50 g/cm3
A current of 4.85 A is passed through a Cu(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 7.60 g of copper?
suppose the solubility of your unknown carboxylic acid is 6.8gml water at 95c and 0.17gml water at 0c. given that you
The half life for the first order decay of 99Mo is 66.02 hours. How long will it take for a sample of 99Mo to decay
list the different types on intermolecular forces in the following
A certain rifle bullet has a mass of 9.81 g. Calculate the de Broglie wavelength of the bullet traveling at 1433 miles per hour.
a 1 l buffer solution with ph 9.05 is desired. one of the two ingredients of the buffer is hcn. what could the other compound be? Suggest a suitable ratio and determine the exact moles of the two compounds to achieve the desired pH.
A 2.88 g lead weight, initially at 10.6 C, is submerged in 7.68 g of water at 52.0 C in an insulated container. What is the final temperature of both substances at thermal equilibrium
Hypothesize as to the type of electrolyte the following solutions would be. Justify you answer from a chemical standpoint.
A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of energy as heat and the CD player releases 50 kJ as heat due to friction from spinning
The osmotic pressure of the resulting solution is 0.02 atm. The solution is prepared at 298 K. Explain what is the molecular weight of the protein. To complete this problem, utilize the Morse equation and presume that the protein is not a salt (i...
What would be your average speed in cm/s?(c) what would be your time (in minutes:seconds) for 1500m? show your work
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