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Does the iron in the Fe(NH4)2SO4 solutions function as an oxidizing agent or a reducing agent. Please explain
What volume of 0.240 M K2S solution is required to completely react with 195 mL of 0.155 M Co(NO3)2.
A weather balloon containing 605 L of He is released near the equator at 1.01 atm and 305 K. It rises to a point where conditions are 0.489 atm
If a 180 mg piece of gold (density =19.32 g/cm^3 ) is hammered into a sheet measuring 2.3 x 1.0 ft , what is the average thickness of the sheet in meters?
Which of the following pairs has about the same atomic radius?
Calculate the potential of a platinum electrode immeresed in solution buffered to a pH of 6.50 and saturated with H2
Why is the resonance energy of pyrrole (21 Kcal/mol) greater that the resonance energy of furan (16 kcal/mol)
a photon has a wave lenght of 501 nm . calculate the energy of the photon in joules . enter your answer in scientific notation
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 20% when
A solution was prepared from 10.0 mL of 0.100 M cacodylic acid and 10.0 mL of 0.080 0 M NaOH. To this mixture was added 1.00 mL of 1.27x10^-6 M morphine.
When a 0.528 g sample of a compound containing only carbon, hydrogen, and oxygen is burned, 0.306 g of water and 0.815 g of carbon dioxide are formed. What is the empirical formula for this compound?
calculate the energy, in joules and calories, lost when 75.0 g of water cools from 86.4 degrees celsius to 2.1 degrees celsius
Sketch a cube. How many vertices does it have? How many edges? How many faces? Mark four vertices of the cube that are also vertices of a regular tetrahedron.
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