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Explain why an electron in the bonding molecular orbital in the H2 molecule has a lower energy than an electron in the 1satomic orbital of either of the separated hydrogen atoms
The results of this test demonstrate that the compound is 83.24% C and 16.76% H with a molar mass of 72 g/mole. What is the molecular formula for this compound?
Problem- State A solution containing 50.00 mL of 0.1800 M NH3 (Kb = 1.8 10-5) is being titrated with 0.3600 M HCl. Compute the pH
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
What are the half-reactions for the following reference electrodes? Include physical states. 1) The silver-silver chloride electrode. 2)The saturated calomel electrode.
Is it possible for all of these particles to be found in one corner of the room and why? Would the answer change if there was only five air particles in the room.?
What is the major product when p-fluoroanisole reacts with sulfur trioxide and sulfuric acid. If applicable, minimize formal charges via expanded octets
How many grams of H2O can be cooled from 45 degrees C to 15 degrees C by the evaporation of 63 grams of water.
For a particular reaction, delta H = -32 kJ and delta S = -90. J/K. Assume that H and S do not vary with temperature. (a)[Under standard conditions] At what temperature will the reaction have delta G = 0
A 45.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
Problem- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.34. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.90 M B(aq) with 0.90 M HCl(aq).
Transesterification occurs when an alcohol (in excess) reacts with an ester. Draw the skeletal structure of the ester formed when ethyl propanoate (propanoate = propionate) reacts with 1-propanol.
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice.Find the atomic weight of this metal.
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