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Problem- In the TLC experiment, why must the spot be applied to the TLC plate above the level of the developing solvent?
Please show me how work it out above problem
In an electrolytic cell Mn2+ is reduced to Mn and Sn is oxidized to Sn2+. Write an equation for the half-reaction occurring at the anode and at the cathode.
how many moles of hydrogen ions were converted to water when 85. ml of 1.0 M hydrochloric acid were neutralized by sodium hydroxide.
Calculate the of the following solutions and report it to the correct number of significant figures: Seawater with H3O = 7.0×10?9
The two alkenes below react with HI at different rates. Draw the structural formula of the MAJOR product formed by the alkene having the HIGHER reaction rate
Define the relationships between raoult's law, boiling point elevation, osmotic pressure, freezing point depression, chemical potential, and the kinetic theory
To 333 milliliters of a 0.120 molar Pb(NO3)2 solution, 0.667 milliliteres of 0.435 molar KIO3 is added. Calculate the concentrations of Pb+2 and IO3- in the solution at equilibrium.
5 ml of acetic anhydride and 5 drops of phosphoric acid is added to 2 g of salicylic acid. Calculate the molar excess of the acetic anhydride (density = 1.08 g/ml)
Hydrazine, N2H4, is used as a rocket fuel. In the reaction below, if 80.1 g of N2H4 and 92.0 g of N2O4 are allowed to react, which is the limiting reactant?
The molarity of a reactant in a second-order reaction falls from 0.150M to 0.130M in 30.0s What is the instantaneous rate of disappearance of the reactant at 30.0s
If an archaeologist finds an ancient firepit containing partially consumed firewood, and the 14C content of the wood is only 13.1% that of an equal carbon sample from a present-day tree, what is the age of the ancient site?
calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.
Calculate how many grams of sodium sulfide are formed if 2.00g of hydrogen sulfide is bubbled into a solution containing 2.00g of sodium hydroxide, assuming that the sodium sulfide made from the reaction is a 92.0% yield
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