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Doing a TLC experiment with a non-polar mobile phase, and a polar stationary phase (silica gel), I was wondering why Salicylamide has a higher RF value than Acetylsalicylic acid considering Salicylamide has a very polar Amide group whereas Acetylsalicylic acid has a carboxylic acid group which are less polar than amides.
From experimental data for rate of disappearance of CH3CHO, derive the rate law and the rate constant, k (with units).
Aluminum reacts with oxygen to yield aluminum oxide. If 5.0g of AL reacts with 4.45g of oxygen what is the empirical formula of aluminum oxide
Using the ideas regarding the effect of basic anions on salt solubility. Which order is correct for the solubility and the Ksp.
Carbon disulfide, CS2, is a volatile, flammable liquid. It has a vapor pressure of 400.0 mmHg at 28.0°C and 760.0 mmHg at 46.5°C. What is the heat of vaporization of this substance?
Calculate the molarity of a hydrochloric acid solution that is 18.25% HCl by mass and has a density of 1.20 g/mL.
Identifying Organic Compounds, A colorless liquid A (C3H6O) was soluble in water and ether, and had a boiling point of 94-96 degrees Celsius. It decolorized a Br2-CH2Cl2 solution and gave a positive ceric nitrate test
the two complimentary single strands of DNA shown below can form (at least) three secondary structures upon annealing. Name three of them.
Treatment of ammonia with phenol in the presence of hypochlorite yields indophenol, a blue product absorbing light at 625 nm, which can be used for the spectrophotometric determination of ammonia.
calculate the E cell when [Zn^+2] = 0.10M and [Cu^+2] = 2.0 x10^-4M. Is the reaction Spontaneous or Non- spontaneous?
A flask containing a mixture of NH3(g) and CH4(g) is cooled. At -33.3 degrees celcius a liquid begins to form in the flask. What is the liquid? NH3(g) or CH4(g)
The imaginary nonmetal E has two isotopes 50E(isotopic mass 49.9715 u abundance 76.66%) 52E (isotopic mass 51.9663 u) Calculate the atomic mass of E as it would appear in the periodic table.
what would be the effect on your calculated molecular weight of p-dichlorobenzene if your lab partner left the stopper
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