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Mg3N2 reacts with H2O to produce Mg(OH)2 and NH3. Determine the rate of change in the amount of Mg3N2 given the rate of change of Mg(OH)2 is 8.50×10-5 mol/s.
Calculate the amount of heat required to completely sublime 19.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
Determine the partial pressure of Ar, argon gas in the flask and A flask is filled with 1.20 of argon Ar gas at the temperature of twenty five degree Celsius.
If the actual pH of the solution (with added HCl) is 6.73, what are the concentrations of H3PO4, H2PO4-, and HPO4 2-. How many moles of HCl were mistakenly added to the original solution? Write out a balanced reaction for any neutralization reacti..
A solution of ammonia and water contains 1.90×10^25 water molecules and 5.20×10^24 ammonia molecules. How many total hydrogen atoms are in this solution
Ca(OH)2 (aq) was prepared) wasn't truely saturated (it was unsaturated) how would this affect the calculated value of the Ksp?
A student is asked to prepare a 1 L buffer by adding 0.11 M sodium acetate to 0.09 M acetic acid solution. What is the pH of the buffer? Ka for acetic acid is 1.8 x10 -5
What is the heat of combustion of the glucose expressed in kJ/mol C6H12O6? (1) +2.80x10^3 kJ (2) -2.80x10^3 kJ (3) -15.6 kJ (4) +65.4 kJ (5) -65.4 kJ The correct answer is B, however
1 calculate the heat of combustion for c2h6 from the following informationc2h43o2-gt
before spectroscopy was invented korners absolute method was used to determine whether a disubstituted benzene
1.75 pounds of pasta dough with a density of about .84g/cm^3 how many feet of 2" wide, 1/32" thick lasagna noodles can be made
An oxygen tank kept at 20.0?C contains 28.0 moles of oxygen and the gauge reads 31.0 atm. After two weeks, the gauge reads 20.7 atm. How much oxygen was used during the two-week period?
What alkyne (or diyne) yields the following oxidative cleavage products. CO2+CH3(CH2)8CO2H
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