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Imagine an experiment in which a mixture composed of the following five compounds is subjected to TLC anaylsis: Ph-OCH3, Ph-COOH, Ph-CH2CH3, PhCOCH3. (Ph= Phenyl , C6H5). Arrange the five compounds in order of increasing Rf when Benzene is used as the eluent. And what differences would be observed, if any, if Ethanol were used as the eluent in place of Benzene?
Chlorine has two stable isotopes Cl-35 and Cl-37. If their exact masses are 34.9689 Amu and 36.9695 amu, respectively, Explain what is the natural abundance of Cl-35. The atomic mass of chlorine is 35.45 amu
Draw and name all of the structural isomers that are ketones with five carbon atoms in its longest chain and the molecular formula C5H10O. Can this molecular formula also have an aldehyde structure? If so, illustrate and name the aldehyde. Can thi..
Find the molecular, ionic, and net ionic equations for the following. Underline all solids. If no reaction occurs, complete the molecular and ionic equations, but wrtie "no reaction" in place of the net ionic equation.
Question- The value of Delta g for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4 kj/mol. If the concentration of 3-phosphoglycerate at equilibrium is 2.25 mM, what is the concentration of 2 phosphoglycerate. Assume a tem..
Account for the fact that LiF as well as CsI have low solubility in water whereas LiI and CsF are very soluble. Define in terms of lattice energy and hydration energy
A 499 mL sample of solution contains 32.0 g of CaCl2 Calculate the molar concentration of Cl - in this solution
A metal cylinder has a length 7.2cm along with diameter of 1.4. It is dropped in a graduated cylinder filled with water upto 61.3ml mark. At what mark must the water level rise after the cylinder is dropped
Place the following oxyacids in ascending order of strength. Use as a criterion in its molecular structure and explain why you select that order. H2Te, HI, H2S y NaH
The neutrons interact with with 6Li to produce tritons (nuclei of 3H), which, in turn, interact with the oxygen to produce 18F. What are the two nuclear reactions?
Compute the typical thermal energy of a water molecule at normal conditions: (kB T) and compare it to the answer of the previous problem
a 425 ml volume of hydrogen chloride gas, hcl is collected at 25 degree Celsius and 270 torr. what volume will it occupy at stp?
Suppose the first-order rate constant at 70C for the decomposition of dinitrogenpentoxide is 6.82*10^-3s-1. Formula for reaction is 2 N2O5-----> 4 NO2 + O2
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