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Antimony reacts with sulfur according to the following reaction:
2Sb(s) + 3S(s) → Sb2S3(s)
What is the mass percent yield from 2.35 g of Sb in excess S, if 1.16 g of Sb2S3is obtained?
Sb2S3is 340. g/mol
A 60/40 percent sample of 1-butanol to cyclohexane is passed through a GC. Depict the schematic of what this might look like and identify each peak
At -14.5 degrees celcius, what is the maximum mass of maltitol (C12H24O11) you can add to a 2.50 kg of pure water and still have the solution freeze. assume that maltitol is a molecular solid and does not ionize when it dissolves in water
110 mL of H_2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.0 degrees C.
When a 58.4 nm radiation is directed on a sample of Krypton, electrons are ejected with a velocity of 1.59x106 m/s. What is the ionization energy of the Krypton
Explain if the 21.45 gram blade metal is heated to 95 degrees C as well as placed into 56.6 grams of water initially at 20.0 degrees C, the final temperature of the water / metal bath becomes exactly 20.8064 degrees.
Consider the following on data on Bell Lake, Based on the Ksp for Al(OH)3 of 1 x 10-33 what are the highest theoretical concentrations of Al3+ at these pH values, in µg /L?
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0047 M. Calculate the number of molecules inside the cell, which is 2.0 micrometers long and 1.3 micrometers in diameter.
Calculate the pH of a 0.02 M solution of oxalic acid (H2C2O4). Ka1 = 5.9 x 10^-2, Ka2 = 6.4 x 10 ^-5. Calculate the concentration of oxalate ion, (C204^2-) in the solution
Draw the structures of the ketones with the molecular formula C6H12O that have a four-carbon chain. Do not consider stereochemistry
At what angle (in degrees) does first-order diffraction from layers of atoms 340.8 pm apart occur, using x rays with a wavelength of 120 pm
Calculate the volume of reagent required for each reaction in this lab sequence, assuming the tarting mass of copper used is 1.00g. Concentrations of reagents are
task 1 write balanced equations to show how ethyl ethanoate can be made from a and acid halide and b an acid
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