The molar ratio of sodium acetate to acetic acid in a buffer solution with a pH OF 5.76 is 10:1. Assuming the total buffer concentration is 2.2 X 10^-2 mol/L, how many grams of sodium acetate (m.w. 82) and how many grams of acetic acid (m.w. 60) should be used in preparing a litre of the solution?

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#Question id: 11096

#Unit 7. System Physiology – Animal

In which structure does diffusion of oxygen to capillaries not play a major role?

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#Question id: 12402

#Unit 6. System Physiology – Plant

According to the Cholodny–Went model of phototropism, the tips of grass coleoptiles have specialized functions such as

a) Production of auxin

b) Perception of a unilateral light stimulus

c) Lateral transport of IAA in response to the phototropic stimulus

Which of the following given above functions is correct?

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#Question id: 24172

#General Aptitude

The “lead” inside the common pencil is actually not lead at all.

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#Question id: 58

#Unit 1. Molecules and their Interaction Relevant to Biology

A covalent chemical bond is one in which ________.

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#Question id: 355

#Unit 1. Molecules and their Interaction Relevant to Biology

Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?