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Given an aqueous solution that is 20% NH4Cl, calculate the molality. Use the molar mass of NH4Cl to help determine the answer.
Equilibrium system given: Fe3+(aq) + SCN- (aq) FeSCN2+(aq) 1. Equilibrium system Net ionic equation 2. Equilibrium system + 1M Fe(NO3)3 Net ionic equation What stress caused the equilibrium to shift and in which direction it shift
the amount of energy necessary to initiate and sustain fusion on Earth is greater than the amount of energy produced in the fusion process. c. We cannot generate the magnetic fields necessary to initiate fusion events. d. It is too expensive to ge..
When 1 of a fuel is burned at constant pressure, it produces 3452 of heat and does 13 of work. What is the value of delta H for the combustion of the fuel?
If you measured absorbances of a product in different solutions at 470 nm and used a molar extinction coefficient of 4234 M^-1 cm^-1 in your calculations.
Metallic aluminum reacts with MnO_2 at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent Al.
what is the chemical formula of a gas if it has a pressure of 680 torr and a density of 1.60 g/L at 27 degrees C.
an fm station broadcasts at 106.9 mhz calculate the wavelength of the corresponding radio waves? what is the amount of
if the pressure during the reaction stays CONSTAT (put the valune can change, like in a piston balloon which of these reactions do work on the surroundings
Major Organic Product Formed of Acetyl Chloride Reacting with Reagents, What major organic product would you expect to be formed when acetyl chloride reacts with each of the following reagents?
what is the purpose of anhydrous CaCl2? Why it is important that none of the solid CaCl2 be included in the final distillation of your 1-bromobutane?
An ideal gas is expanded reversibly and isothermally from 10 bar to 1 bar at 298.15 k. what are the values of (w), (q), delta U, and delta H. If the ideal gas expands isothermally against a constant pressure of 1 bar, how much work is done on the ..
for the equation 3fe4h2o4h2fe3o4 if 625 g of fe3o4 is produced in the reaction how many moles of hydrogen are produced
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