SELF-TEST II

The following questions range in difficulty from relatively straightforward to quite difficult the answers are in Appendix 

Each of the first three problems consists of a molecular formula, a H spectrum, and a l3C 1H spectrum of an unknown compound. For each of these three sets of spectra  

Predict the position and intensity of each line in the coupled 13C spectra of (a) acetone-Dg [D3C-C(=0)-CD3] and (b) F-13CH3. 

Cyclooctatetraene exhibits only one signal in its H spectrum, at 8 5.75. Compare this value to the chemical shift of benzene (Section 6.5) and discuss its significance  

(a) Predict the appearance of the first-order H spectrum of compound A2  

(b) Predict the appearance of the off-resonance decoupled - C spectrum of this compound, with V2 set at 2000 Hz away from the average H chemical shift and B2 equal to 2 x lO T. 

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Self-Test I.3A Predict the identity of the precipitate that forms, if any, when aqueous solutions of ammonium sulfide and copper(II) sulfate are mixed, and write the net ionic equation for the reaction. 

Self-Test 11.15B Use data from Tables 11.4 and 1 L.5 to calculate the molar solubility of copper(II) sulfide in 1.2 M NH3(aq). 

Self-Test 12.1B Acidified potassium permanganate solution reacts with sulfurous acid, H2SO. (aq), to form sulfuric acid and manganese(II) ions. Write the net ionic equation for the reaction. In acidic aqueous solution, H2S03 is present as electrically neutral molecules and sulfuric acid is present as HS04 ions. 

Self-Test 16.3A (a) Name the compound Fe0H(H20)5]G2. (b) Write the formula of potassium diaquabis(oxalato)chromate(II). 

All devices other than those covered by Annex II are subject to the EC Declaration of Conformity procedure (Annex III), which does not involve the intervention of a notified body, but which includes supplementary requirements for devices for self-testing, which does involve a notified body (Annex III). 

Self-Test 2.2A Write the electron configurations of the copper(I) and copper(II) ions. 

Self-Test 12.1A When a piece of copper metal is placed in dilute nitric acid, copper(II) nitrate and the gas nitric oxide, NO, are formed. Write the balanced chemical equation for the reaction. 

Self-Test 12.3A Write the diagram for a cell that has a hydrogen electrode on the left, an iron(II)-iron(III) electrode on the right, and includes a salt bridge. 

Part of the SpecTRM-RL description of an environment component (a radio altimeter). Modeling failure behavior is especially important for safety analyses. In this example, (1) the altimeter may be operating correctly, (2) it may have failed in a way that the failure can be detected by TCAS II (that is, it fails a self-test and sends a status message to TCAS or it is not sending any output at all), or (3) the malfunctioning is undetected and it sends an incorrect radio altitude. 

Favre, J.-L. 1983. Comparative statistical analysis between penetrometers, vane-tests and self-boring pressuremeters. Proceedings of the International Symposium, Soil and Rock Investigations by In Situ Testing, II 287-291. 

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