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What mass of carbon dioxide (in ) is produced upon the complete combustion of 18.9 of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621.
Phosphorus-32 decays by beta emission to form sulfur-32. How many half-lives have passed in the reaction shown here
What mass of sucrose should be combined with 452 g of water to make a solution with an osmotic pressure of 8.90 atm at 270 K?
Calculate ?G at 298 K for the reaction of nitrogen and hydrogen to form ammonia if the reaction mixture consists of 0.50 atm N2, 0.75 atm H2, and 2.0 atm NH3.
If 25.0 mL of 0.451 M HNO3 solution is titrated with 0.451 M NaOH, Calculate the pH of the solution after each of the following amounts of base have been added. Set up the relevant neutralization reaction equations for each part.
A 10.0-g sample of krypton has a temperature of 25 degrees C at 575 mmHg. What is the volume, in milliliters, of the krypton gas
Assume every breath a person took is 0.5L of air, figure out how many grams of Oxygen you consume at every breath. Now assume that you breathe 30 times per second, figure out how long it took for you to consume all the oxygen in a sealed room of 1..
the equation of line determined from a beer's law plot is y=0.195x+0.4. what is the resistance of an unknown water sample if the assumed concentration is 650ohms.
It is again evacuated and then filled with a gas of unknown molar mass. When reweighed, the flask is found to have gained 8.108 g.
After equilibrium is established, the flask is found to contain 1.13 x 10-3 mol of Cl2. Calculate the value of the equilibrium constant, Kc, for the reaction at this temperature.
Consider following cell. SCE stands for the saturated calomel reference electrode, which has a fixed potential of 0.244 volt. Pt|VOSO4 (0.0586 M), V2(SO4)3 (0.190 M), HClO4 (0.0100 M) || SCE Calculate the cell potential.
Determine whether each of the following compounds would be best represented by an ionic or a covalent Lewis structure.
If the following elements (Ca,V,Mn,Ni,Zn) were listed from smallest (1st) to largest (5th) ionization energy, where would Calcium be listed
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