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Ammonia burns in pure oxygen and reaction produces nitrogen and water. What is the amount of Nitrogen produced from 45.0 g NH3?
An equilibrium mixture of this reaction(NH4HS(s)?NH3(g)+H2S(g)) at a certain temperature was found to have [H2S]= 0.350M and [NH3]= 0.276M .What is the value of the equilibrium constant (Kc) at this temperature.
How many carbon dioxide in kilograms is produced upon the complete combustion of 18.9 L of propane(Many home barbecues are fueled with propane gas
A 21.10 g sample of liquid ethanol is initially at -36.90 oC. If the sample is heated at constant pressure (P = 1 atm.), how much kJ of energy are needed to raise the temperature of the sample to 100.60 oC.
what is the minimum amount of ice at 0C that must be added to the contents of a can of diet cola (340mL) to cool it from 20.5C to 0C?
What is the value of q when 0.0209 g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol.
If the solution is 40.0% K2CO3 by mass, what is the predicted freezing point of this solution in °C, assuming full ionization.
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg.
A gaseous mixture of O2 and Kr has a density of 1.114 g/L at 431 torr and 325 K.What is the mole percent O2 in the mixture.
Calculate the amount of heat [kcal] released when 50.0 g of steam at 100 °C hits the skin, condenses, and cools to a body temperature of 37 °C.
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. a) what is the linear attenuation coefficient for this material? b) What is the half thickness? c) what is the mean-free-path length for 1.25-MeV photons in this mate..
Predict the order for increasing binding energies of the C(1s) electron for the following compounds giving your reasoning.
The normal boiling point of ether is 307.8 K. Calculate the temperature at which its vapor pressure is exactly half of that at its normal boiling point.
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