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Ferrocene eluted from the column first and acetylferrocene second, but ferrocene ended up as the higher of the two spots during TLC analysis. Explain.
Classify the substances CaCl2, CuSO4, NH3, C2H5OH according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution from the following choices
Write a balanced equation for the reaction of NaCH3COO and HCl. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter no reaction if no precipitate is formed.
What mass (in grams)of KNO3 would have to be decomposed to produce 27.1 L of oxygen measured at STP?
Why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminoophen to the Hirsch funnel
Using the equation Fe2O3+2Al-->2Fe+Al2O3, how many grams of Al are needed to completely react with 135 g Fe2O3
Calculate the CO3- concentration of a 5.45 x 10-4 M H2CO3 (carbonic acid) solution. Ka1 and Ka2 of carbonic acid are 4.3 x 10-7 and 4.8 x 10-11 respectively.
A calorimetry experiment determined that the combustion of 1.01 g of H2 reacting with excess O2 producing H2O gave q=143 kJ. Calculate the change in enthaply.
What is the change in the boiling point of the aqueous solution? and water how man moles of ions are present is solution
How many grams of CaH2 (Molar Mass = 42.1 g/mol)are needed to generate 16.0 L of H2 gas if the pressure of H2 is 729 torr at 21.0°C?
An excited hydrogen atom emits a photon with a frequency of 1.141 x 10^14 Hz to reach the n = 4 state. From what state did the electron
The gas remaining in the first container shows a pressure of 1.710 atm. Calculate the volume of the spherical container.
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C,the volume of the gas is 361 mL. To what temperature must the gas be heated to occupy a volume of 492 mL.
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