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Iodine tricholoride, ICI3, will react with a chloride ion to form ICI4-. Which species, if any, acts as a Lewis acid this reaction?
a. ICI4-
b. ICI3
c. CI-
d. the solvent
e. None of these
draw the lewis dot structures for the following molecules:
15 g of steam at 373 K is added to 250 g of H2O (liquid) at 298K at onstant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
What force keeps the gases of the earth's atmosphere from diffusing into interplanetary space, where the pressure is essentially zero?
Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound
A solution containing 0.750 g of an unknown substance in 30.0 g of cyclohexane was found to freeze at 3.1 C. What is the molar mss of the unlown substance?
Consider the ring structure of beta-D-glucose. It will give a positive test as a reducing sugar. How can that happen?
Putrescine is a compound that is partially responsible for the rotten smell of decaying flesh. It consists of 54.50% C, 13.73% H, and 31.77% N. What is the empirical formula of putrescine?
what is the density of hydrogen sulfide at 1.2 atm and 307 K? answer in units of g/L
A 5.50 g sample of an unknown is dissolved in 251. g of benzene. The freezing point of the solution is 1.02 C below the normal freezing point of pure benzene.
If oxygen gas were collected over water at 295K and the total pressure of the wet gas were 710 mm Hg, what would be the partial pressure of the oxygen
KCL has the same structure as NaCl, the length of the unit cell 638 pm the denstiy of KCl is 1.984 g/cm3 and its formula mass is 74.55 amu. what is avogadro's number?
Radio station KLBJ broadcasts at a frequency of 93.7 × 106 s-1. Determine the length of the waves that corresponds to this frequency.
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