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Infer the structure of compound Z (C11H12O4) which has UV-Visible absorptions above 275 nm. Its spectrum shows bands at 3208, 3175, 3100, 2947, 2908, 2847, 2753, 1740, 1730, 1650, 1634, 1590, 1565, 1476, 1455, 1230, and 1105 cm-1. Its 1H-NMR spectrum shows 1.2(d,6H), 3.8(m,1H), 7.3-7.8(ABq,4H), 10.7(s, 1H).
A two-bulbed flask contains seven particles. What is the probability of finding all seven particles on the left side. please show and explain how you got the answer. A. 3.10% B. 0.32% C. 0.78% D. 0.93% E. 0.13%
Explain the attraction of a positive end of one molecule for the negative end of another neighboring molecule is a
the elements of which groups in the periodic table release the most energy by gaining an electron. the elements of which group in the periodic table absorb energy when gaining an electron.
Identify the intermolecular attractions for dimethyl ether and for ethyl alcohol. Which molecule is expected to be more soluble in water?
what is the molecular geometry around each central atom: CH2CH2(double bond) C=? C=? Also, for CH3 O CH3 C-O-C C=? O=? C=.
sample of amygdalin yields alpha hydroxyphenylacetic acid that consists of 70% of the R isomer and 30% of its enantiomer. What is the specific rotation of this mixture? The specific roation of pure (R)-alpha-hydroxyphenylacetic is -154.
Calculate the molar solubility of strontium chromate in water at 298 K if Ksp = 3.6 * 10-5.
When are covalent bonds most likely to form? a. between 2 atoms with a high ionization energy b. between 2 with a low ionization energy. c when one atom high and other low d. no correct choice. (I'm leaning towards a.)
Which reagent is capable under standard conditions, of converting Co2+ (aq) into Co(s) but does not convert Fe2+ (aq) into Fe(s). Which of the following is the best reducing agent under standard conditions
The Ksp for Cr(OH)3 is 1.6 x 10?30. What is the molar solubility of Cr(OH)3 in a buffer solution with a pH of 11.5. Hint: what is the balanced reaction
Which of the following functional groups will exhibit NO IR absorption at 1630 -1780 cm-1 or at 3200-3550 cm-1
Some water dissolves in liquid methane at -161 degrees C, the boiling point of liquid methane, to give a solution in which the mole fraction of water is 6*10^-5. Determine the mass of water (in units of grams) dissolved in 115L of this solution if..
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