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Calculate amount of Energy released in formation of one mole of BaO (Not Lattice energy). The radius of barium ion is 1.35 A and Radius of oxide ion is 1.40 A. (A=10^-10m) .show steps and reasoning. and appropreate unit.. find answer to 3 Significant Figures.
If 3.17 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
The mass of a cube of iron is 284 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
A mixture of three gases has a total pressure at 293K of 1380 mmHg. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar?
Calculate how many grams of ATP must be produced to walk a mile. ATP synthesis is coupled to the oxidation of glucose (?Go' = -686 kcal/mol). How many grams of glucose are actually metabolized to produce this amount of ATP?
One hundred grams of water is saturated with NH4Cl at 50 degrees celsius . According to Table G, if the temperature is lowered to 10 degrees celsius, what is the total amount of NH4Cl that will precipitate.
Oleum or fuming sulfuric acid availble commerically in concentrations ranging from 20 to 99% sulfur trioxide. 1. What is the percentage by mass of sulfer trioxide (SO3)
Calculate the molar concentration of Tl+ and Cl- in this saturated solution. Calculate Ksp value for TlCl at this temperature
A 1- flask is filled with 1.20 g of argon at 25 C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.
if 5.00g helium gas is added to a 1.00-L ballon cantaining 1.00g of helium gas, what is the new volume of the ballon?
Hydrogen gas (H2) and oxygen gas (O2) are the products when an aqueous acidic solution is electrolyzed; each mol of water gives one mol of H2 and half a mol of O2.
What atomic or hybrid orbitals make up the sigma bond between Br and Cl in bromine trichloride, BrCl3 ?
the net change in entropy of the system and surroundings considered together must be a positive quantity; (e) the entropy of the universe must remain constant.
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