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Zinc metal can be getting from zinc oxide by reacting the oxide with the element carbon. The products of the reaction are Zn and CO2. Explain what mass of zinc oxide is needed to react completely with 5.31 mol of carbon?
What is the molar mass of the unknown solution containing 1.01 g of unknown in 17.74 g biphenyle froze at 42 degrees C. Pure biphenyl freezes at 71.0C
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately.
What volume of 0.250 M Na3PO4 is required to precipitate all the lead(II) ions from 180.0 mL of 0.550 M Pb(NO3)2
Coal reserves contain 3.87 x 10^16 moles of carbon. If efficiency is 40% how much gross energy can this produce by burning? Assume constant pressure.
Fuel is a mixture of different hydrocarbon compounds containing only hydrogen and oxygen. Calculate the volume of carbon dioxide, at 300 °C and 100 kPa, passing through a vehicle's exhaust during the combustion of a full tank of fuel
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
A gas occupies 672 mL at 785 mmHg. What volume would it occupy at 453 mmHg at constant temp??
Aspirin has a pKa of 3.5 and is neutral in its protonated form (i.e. HA). Acetaminophen has a pKa of 9.5 and is also neutral in its protonated form. Predict the elution order of the two compounds in capillary electrophoresis.
Cadaverine, a fould smelling substance produced by the action of bacteria on meat, contains 58.55% C, 13.81% H and 27.40% N. Its molar mass is 102.2 g/mol.
dissociate into two NO2 molecules if one mole of pure N2O4 is introduced to a 10 liter constant volume, constant temperature of 298K reactor. In addition determine the initial and final pressures within the reactor and the composition of the equil..
which types of solutes tend to be insoluble in pure water but soluble in acid or in base
give explanation why the boiling point of a 2-component mixture increase slowly throughout a simple distillation while
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