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Question - A protein was purified and then analyzed on a size exclusion column. Its MW was determined to be 130,000 Dalton. The SDS-PAGE gel shows two bands, corresponding to molecular weights of 35,000, 20,000 Dalton. Describe the native conformation of this protein in terms of the number of subunits present and their molecular weight.
draw a three-dimensional representation of the oxygen-bearing carbons atom in ethanol ch3ch2oh using the standard
hydrogen iodide hi decomposes in the gas phase to produce hydrogen h2 and iodine i2. measuring the value of the rate
Suppose a mixture of oxygen and nitrogen is prepared in which there are .200 mol oxygen and .500 mol nitrogen. What is the mole fraction of each gas in the mixture
What will be the pressure of a sample of 48.0 grams of oxygen gas in a glass container of volume 5.2 L at 25 °C?
Question- It takes 45.0JJ to raise the temperature of an 9.00gg piece of unknown metal from 13.0C to 24.0C. What is the specific heat for the meta
What is the freezing point of a solution prepared from 50.0 g ethylene glycol (C2H6O2) and 85.0 g H2O? Kf of water is 1.86°C/m. A) 17.6°C B) -176°C C) -1.50°C D) 1.50°C E) -17.6°C
use maxwell distribution of speeds to estimate the fraction of CO2 molecules at 300K that have speeds in the range 200 to 250 m/s.
A system that had work done on it but which receives or loses no heat from or to the surroundings has
vitamin c l-ascorbic acid mw 176.0 gmol is a weak acid pka 4.863. suppose a 500.0 mg tablet is dissolved in water and
oxalic acidc2h2o4 is generally used as ableaching and cleansing agent. calculate concentration of all the species
how many meters away is a cliff if an echo is heard one half second away? assume that sound ws traveled at 343 m/s on that day.
The amount of moles of iron (III) chloride utilized to prepare 400mlof stock solution (is is 0.02 mol * L-1. Explain what is the concentration of the iron (III) chloride stock solution
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