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Is Potassium permanganate (KMnO4) undergo sublimation
Nitrogen from a gaseous phase is to be diffused into pure iron at 675 C. If the surface concentration is maintained at 0.2 % N, what will be the concentration 2 mm from the surface after 25 h? The diffusion coefficient for nitrogen in iron at 675 ..
explain why it is dangerous to mix solutions in a test tube by placing a finger
Which one of the following compounds is the most acidic. Please explain. a.) 1-Phenylethanol b.) 2-Phenylethanol c.)o-Ethylphenol d.) Ethyl phenyl ether e.) Nitrobenzene
HxCyOz + NaOH --> xH2O + NaxCyOz If 27.33ml of 0.0973M NaOH were used to titrate 0.328g of pure unknown carboxylic acid, determine the number of reactive H in a single molecule of the carboxylic acid.
Explain why the statement "No process is 100% efficient" is not the best statement of the 2nd law of thermodynamics.
Place the following gases in order of increasing average molecular speed at 300. K: CO, SF6, H2S, Cl2, HBr. (Use the appropriate symbol to separate substances in the list.) chemPadHelp SF6
The hydration of norbornene and the bromination of trans-cinnamic acid are both examples of additions across a double bond. How many new stereocenters were generated in the hydration
Write structures for all the structural isomers of double-bonded compounds with the molecular formula C5H10. Of the compounds
Many enzyme-catalyzed processes are multi-step reactions. In a multi-step reaction, what step in general determines the overall reaction rate
an optically active i.e. chiral compound with the formulac6h12o2 shows a broad strong bandat 3400 cm-1 and a strong
when .8436 mole of naphthalenec10h8 a solid is burned in a constant- volume bomb calorimeter at 298k 5150 kj of heat
Estimate the value of the equilibrium constant at 625 {rm K} for each of the following reactions. Delta H{^{circ}_{rm f}} and S{^{circ}} for rm BrCl(g) is 14.6 {rm kJ/mol} and 240.0 frac {rm J}{rm mol cdot K}, respectively.
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