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Utilizing paper chromatography a student separated a dye spot into 3 components: A, B, C. The components traveled 4.2 cm, 5.7 cm, as well as 8.0 cm respectively from their primary position on the strip. The solvent front traveled 12.1 cm.
a) Find out the Rf value of each component
b) Explain which component had the greatest affinity for the solid phase? explain
c) Explain which component had the greatest affinity for the mobile phase? Explain
Calculate the energy for the transition of one mole of electrons from N=10 to the N=7 level in a carbon
if clean magnesium metal burned in air it would form magnesium oxide. suppose the magnesium had a this oxide coating.
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In a certain experiment, 20.00 ml of 0.800M HCL were added to a O.1022 gram sample of MCO3. The excess HCL required 5.64 ml of 0.1000M NaOH for neutralization. Compute the molar mass of the carbonate and identify M.
a motor attached to a 120 v60 hz power line draws an 7.80 a current. its average energy dissipation is 770 w.how much
Hydrogen peroxide decomposes to water and oxygen gas and the activation energy for this process is 42 kJ/mol. The hydrogen peroxide formed in biological processes is harmful to tissue however the enzymecatalase catalyzes the decomposition of hydro..
What is the density of a block of marble that occupies 350 cm3 and has a mass of 660 g?Answer in units of g/cm
a 1.00 g sample of stream water was found to contain 5.010-6 g lead. calculate the concentration of lead in the stream
A saturated solution of calcium iodate, Ca(IO3)2, is created by suspending a small amount of pure solid of Ca(IO3)2 in 50.0 mL of distilled water.
The mass percent of an element in a compound is the mass of the element (total mass of the element's atoms in the compound) divided by the mass of the compound (total mass of all atoms in the compound) times 100%. What is the mass percent of each ..
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