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Some hypothetical metal has the simple cubic crystal structure (i.e., atoms positioned at each of the eight corners with atoms touching one another along cube edges). Calculate its atomic weight if its atomic radius and density are 0.153 nm and 8.72 g/cm3, respectively.
Match each item in Column A with the corresponding item in Column B regarding the processes of nitrification and denitrification: Column A Column B a. NH4+ i. Electron acceptor for denitrification
In each reaction box, place the best reagent and conditions from the list below. (A reagent may be used more than once.) acetylene to 3-hexyne-1-ol
A beaker with 1.50×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20mL of a 0.330\it M \rm HCl solution to the beaker.
If the following elements were to form ions, they would attain the same number of electrons as which noble gas? Noble gases- He, Be, Ar
For the aqueous reaction 2Cr3+ + 3IO4- +10OH- = 2CrO42- + 3IO3- + 5H2O, under a given set of conditions, the rate of appearance of CrO42- is 3.0 x 10-4 mol/L•s. What is the rate of disappearance of IO4-
Predict the acid/base/neutral properties of 1.00 M solutions of, respectively, KH2AsO4 and K2HAsO4.
An iron bar of mass 781 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by metal.
If a Boron-10 nucleus absorbs a proton, the radioactive nuclide that is produced may undergo alpha decay. What nuclide is produced in the decay process? Write the balanced radiochemical equations for both processes.
Experimental write up without changing our kinetics calculation. Write the structure of another other organic products that might be produced from the carbocation intermediate in this reaction.
potassium chloratedecomposed when heated to produce potassium chloried and oxygen gas. if 2.50 grams od kclo3 were
What is the pH of the solution created by combining 8.00 mL of the 0.10 M base with 8.00 mL of the 0.10 M acid?
A volume of 95.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C .
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