Calculate the change in volume of the protein

Reference no: EM13551740

The protein ?-lactalbumin (molecular weight = 14,000) has been studied under different solution conditions by dynamic light scattering. At pH 7 and 40°C in a dilute solution the diffusion coefficient was found to be 14.25×10-7 cm2/s. (a) If the viscosity of the solvent was 0.0101 P, estimate the diameter of the protein assuming that it is spherical in shape. (b) As pH < 2 this protein becomes inactive and changes spectral characteristics. Under these conditions the diffusion constant was found to be 12.80×10-7 cm2/s. Calculate the change in volume of the protein (assume all else remained the same).

Reference no: EM13551740

Questions Cloud

Whats the balloons new radius : Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 12cm . You take the balloon in an airplane, where the pressure is 0.90 atm. If the temperature is unchanged, what's the balloon's new radius?..

Egg incubation is important determinant of sex of reptiles : Egg incubation is an important determinant of the sex of many reptiles. In a study of loggerhead turtles 100% of the hatchings from eggs incubated at 26°C were male, while 100% of those from eggs incubated at 32°C were female.

Find the hairless cats temperature in degrees : A hairless cat's body temperature is 7.5 degrees C higher than a human's. Part A: Find the hairless cat's temperature in degrees C. Part B: Find the hairless cat's temperature in degrees F. Express your answers using one decimal place and include the..

Compute the expected sea level rise for the projected : Compute the expected sea level rise for the projected 4°C mean global temperature rise anticipated by 2100. The average depth of the ocean is 3790 m, but you will not consider this whole depth to be expanding. Instead you will only consider the ex..

Calculate the change in volume of the protein : The protein ?-lactalbumin (molecular weight = 14,000) has been studied under different solution conditions by dynamic light scattering. At pH 7 and 40°C in a dilute solution the diffusion coefficient was found to be 14.25×10-7 cm2/s.

Consult table moments of inertia of various bodies : Calculate the moment of inertia of each of the following uniform objects about the axes indicated. Consult Table Moments of Inertia of Various Bodies in the Textbook as needed. Part A A thin 2.00kg- rod of length 75.0cm , about an axis perpendicul..

Magnitude-direction of static friction force acting on box : A box 4kg being transported in the back of a truck that is accelerating forward at 2 . the box does not slide relative to the truck . the coefficient of static friction between the box and the truck bed is 0.5. what are the magnitude and direction..

How much work is done by gas during isothermal expansion : A balloon contains 0.63 mol of helium. It rises, in maintaining a constant 280 K temperature, to an altitude where its volume has expanded three times. How much work is done by the gas during this isothermal expansion?

What is acceleration of block down plane-tension in string : A block with mass = 5.00 slides down a surface inclined 36.9 to the horizontal (the figure (Figure 1) ). The coefficient of kinetic friction is 0.26. A string attached to the block is wrapped around a flywheel on a fixed axis at . The flywheel has..

User Account

All Pages