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1. Which of the following has the highest ionization energy?
A. K
B. C
C. O
D. N
E. Ca
2. Which of the following has the smallest atomic radius?
A. N
B. Br
C. F
D. S
E. Cl
3. Which of the following ions has the same electron configuration as an argon atom?
A. Ca+
B. K+
C. Br-
D. p3+
E. S3-
4. How many of the following electron configurations for the species in their ground state are correct?
I. Ca: 1s22s22p63s23p64s2II. Mg: 1s22s22p63s1III. V: [Ar] 3s23d3IV. As: [Ar] 4s23d104p3V. P: 1s22s22p63p5
When a 4.25g sample of solid ammonium nitrate dissolves in 60.00g of water in another insulating calorimeter the temperature drops from 21.0450C to 16.8700C. What is the (delta)H for the dissolution
Using curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone to 9-fluorenol with sodium borohydride followed by aqueous acid
What are some of the side products that can occur in the preparation of meso-Tetraphenylporphyrin and Metalloporphyrin using pyrrole and benzaldehyde in acetic acid
Question- How much work does a gas do when is expands against a constant pressure of 0.500 atm from a volume of 50.00 ml to a volume Question-of 350.00 ml
Problem- Based on the molecular structures of the fluorocarbons, account for the difference in their solubilities.
the radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5730 years. A wooden artifact in a museum has a 14C count that is 0.125 times that found in living organisms. Estimate the age of the artifact.
Why is molarity not the best means of stating acid strength? Is molarity the most representative form of quantifying acids and bases?
Calculate the concentrations of H3O+ and the pH of each acidic solution. Since HCl is a monoprotic acid (an acid that donates only one proton or hydrogen atom permolecule to an aqueous solution), the H3O+ concentration is equivalent to the HCl mol..
When one mole of H20(g) is condensed to 1 mole of H20(l) at 1.00 atm and 100C, 40.66 kJ of heat is released. If the density of H20(l) at this temperature and pressure is .996 g/cm^3, calculate
what type of conalently bound compound can dissolve in water. what type of sructure and bonding is required
When sodium chloride is strongly heated in a flame, the flame takes on the yellow color associated with the emission spectrum of sodium atoms. The reaction that occurs in the gaseous state is Na^+(g) + Cl^- (g) ----> Na (g) + Cl (g)
Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silver sulfide at this temperature
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