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compare the purity/identity of the samples from the extraction with the purity of the samples obtained from column chromatography. Please just give a comparison of these 2 thecnique column vs tlc for purity and identity
Predict whether, to any significant extent, MnO-4(aq) will oxidize Cl-(aq) to Cl2(aq) in acidic solution, The reaction is spontaneous under standard conditions
An unknown metal hypochlorite salt, M(ClO)2, is subjected to analysis by iodometric titration: the salt is dissolved in dilute sulfuric acid, treated with excess aqueous KI, and then titrated with Na2S2O2 in the same manner as in your experiment
Compound Y has a solubility of 2.0 g/100 mL in water and 20.0 g/100 mL in ether. What weight of compound Y would be removed from a solution of 1.8 g of Y in 100 mL of water by a single extraction with 100 mL of ether?
A weather ballon is filled with helium to a volume of 305L at 28 degree celcius and 751 mmHg . The ballon ascends to and altitude where the pressure is 504 mmHg and temperature
Predict the products of the reaction between each of the following compounds and both chromic acid and PCC. a) 2-methyl-2-butanol
As gas expands from 1.00 L to 2.50 L against constant pressure of 820 torr. Calculate the change in internal energy for the gas, if 120 J of heat is transferred to the gas during the expansion.
The electron sea is localized between two metal atoms at a time. 4. The metal is held together by the attraction between the metal ion cores and the sea of valence electrons
If several large air bubbles entered the graduated cylinder filled with water when it was inverted into the water trough, what would the effect be on a plot of volume H2(g) vs. mass Mg?
A 1.17 g sample of an alkane hydrocarbon gas occupies a volume of 674 mL at 28°C and 741 mmHg. Alkanes are known to have the general formula CnH2n+2.
Write the complete ionic equation for the reaction that occurs when a few drops of HCl are added to the buffer.
Moles of carbonate in limestone? 2. % CaCo3 in limestone (Equation 2)?
undergoes a uniform negative acceleration for 1.5 s, andthen comes to rest. Whatdoes the spring scale register (a)before the elevator starts to move?
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