The dependence of the sedimentation coefficient (s) of a spherical protein on its mass should be determined. The rate of sedimentation of 80-kDa protein than 40-kDa protein should be determined. Concept introduction: The sedimentation coefficient can be defined as a quantity associated with the microscopic particle size. It is equal to the particle’s terminal external velocity. It occurs when intermediate is centrifuged in a fluid divided by the centrifugal force acting on it. It is represented in units of time.

Question

From the reaction data below, determine whether the reaction is first order or second order and calculate the rate constant. Time (s) 0 Reactant (mM) 5.4 1 4.6 2 3.9 3 3.2 4 2.7 5 2.3 Only a plot of In[reactant] versus t gives a straight line, so the reaction is first order . The negative of the slope, k, is 0.171

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Question

Chapter 3, Problem 8P

Interpretation Introduction

Interpretation:

The dependence of the sedimentation coefficient (s) of a spherical protein on its mass should be determined. The rate of sedimentation of 80-kDa protein than 40-kDa protein should be determined.

Concept introduction:

The sedimentation coefficient can be defined as a quantity associated with the microscopic particle size. It is equal to the particle’s terminal external velocity. It occurs when intermediate is centrifuged in a fluid divided by the centrifugal force acting on it. It is represented in units of time.

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