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A complex with the formula (CO)5CrC5H7N was recently prepared. The handout distributed in class discusses a variety of characterization techniques typically used for organometallic compounds. The results of the more commonly used NMR and IR data are as follows. IR -- In the carbonyl region there are stretches at 2057, 1980, and 1908 cm-1. The NMR spectra are as follows: 1H NMR chemical shift (relative intensity): 3.65 (3H), 3.89 (3H), 5.91 (1H) 13C NMR chemical shift (splitting): 47.97 (quartet), 49.71 (quartet), 84.16 (doublet), 116.1 (doublet), 216.98, 223.82, 248.85 (singlets) What is the structure of the compound which is consistent with the 18-electron rule (for the transition metal) and the octet rule?
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
Using A sample having X amount of oxalic acid. If 0.5187 grams of the sample requires 40.20 mL of 0.1000 M Sodium hydroxide to neutralize the oxalic acid completely.
In a particular experiment, 2.25 g of NH3 and 3.75 g of O2 are placed in a container and allowed to react. How many grams of NO will have been formed when all of the limiting reactant has been consumed.
Dinitrogen tetraoxide, N2O4, decomposes to nitrogen dioxide in a first-order process. If k=2.5 x 10 to the 3rd s-1 at -5degrees C and k=3.5 x 10 to the 4th s-1 at 25 degrees C, what is the activation energy for the decomposition?
A 0.465 g sample of an unknown compund occupies 245 ml at 298 K and 1.22 atm. What is the molar mass of the unknown compound?
Examine the following molecule, CH3CH2CCCHCHCH2CH2CBr3. Numbering the carbon atoms from left to right, which three atoms would you predict the bond angle to be the largest
Classify each of the following processes as spontaneous or nonspontaneous. I. H2O(l) --> H2O(g) T=25 deg C, vessel open to atmosphere with 50% relative humidity
The value of delta H for 2CO(g) + O2 (g) = 2CO2(g) is -482 kJ. Calculate the heat released to the surroundings when 38.5 g of O2 (g) reacts with excess CO
A concentration cell consists of two Ni / Ni2+ electrodes. The electrolyte in half-cell A is 0.50 M and the electrolyte in half-cell B is 0.0025 M. Which combination below correctly pairs the anode and the cell voltage
Which of these elements occupies a position on the periodic table that is not entirely consistent with its chemical properties
calculate the moles of h2 present in this gas sample. . 9. 1.0 gram of water at 25 c is heated to 100 c at which point
What are the RATE LAW and k VALUE (with units) for the reaction? Assume conc. in moles per liter T or F. Feezer burn involves solid water conversion to vapor then back again.
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