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a) The diffusion coefficient of the protein Lysozyme (MW= 14.1 kg/mol) is 0.104×10- 5 cm2/s. Define how long will it take for the protein to diffuse an rms (root-mean-square) of 1µm?
b) You are about to carry out a microscopy experiment in which you will monitor the fluorescence from a single lysozyme molecule. Explain the spatial resolution of the microscope is 1µm. You intend to monitor the diffusion using a camera that is able of one image every 60 sec. Is the imaging rate of the camera adequate to detect the diffusion of a single lysozyme protein over a length of 1 µm?
A helium-filled weather balloon has a volume of 2.4 × 102 L at 99 kPa pressure and a temperature of 0°C. What is the mass of the helium in the balloon?
Identify the Qual I cation(s) that is(are) confirmed present in a reference solution by: the formation of a precipitate. the color of a soluble complex ion. the characteristic color of a flame test
Give the coordination number of the central ion in each of the following complexions. a. Zn(OH)42-
A beaker with 200 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.40 mL of a 0.400 \it M \rm HCl solution to the beaker.
Pancreatic lipases hydrolyze triacylglycerols (triglycerides) that have been emulsified by bile. Modify the triacylglycerol below to show the products of its hydrolysis by pancreatic lipase and two water molecules.
What mass of NaOH is needed to precipitate the Cd2+ ions from 48.0 mL of 0.500 M Cd(NO3)2 solution?
a sample of gas contains 0.2000 mol of c2h4g and 0.2000 mol of br2g and occupies a volume of 13.7 l. the following
When one of the atoms involved in a covalent bond has a much higher electronegativity than the other a bond results.
What two predominant effects govern most chemical reactions and properties? What are the two major types of computational approaches used to model chemicals
During this reaction, P4 + 5O2 → P4O10, 0.800 moles of product was made in 15.0 seconds. What is the rate of reaction
Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. What type of electromagnetic radiation is emitted in each transition?
The thermal decomposition of dinitrogen pentoxide in the gas phase to give nitrogen dioxide and oxygen is a first order reaction. If the half life at 55 degrees celcius is 410 s, what is the value of the rate constant k
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