Question 4 (2 points) The molecule shown below is known as TRIS (Tris(hydroxymethyl)aminomethane) and has a pK₂ of 8.1.

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Question 4 2 Points The Molecule Shown Below Is Known As Tris Tris Hydroxymethyl Aminomethane And Has A Pk Of 8 1 1 (52.72 KiB) Viewed 13 times

Question 4 (2 points) The molecule shown below is known as TRIS (Tris(hydroxymethyl)aminomethane) and has a pK₂ of 8.1. NH3 OH HO HO- Which one of the following statements about this molecule is FALSE? A) Addition of 0.025 mol of HCI to 0.050 mol of this molecule results in the formation of a buffer. O B) The pH of TRIS buffers changes with temperature because the TRIS pK changes with temperature. OC) The pK₂ of this molecule is lower than the pk of ammonium ion. O D) The amine group is neutral (i.e. uncharged) when it is in its conjugate base form. O E) This molecule contains a primary amine.

Which of the following amino acids has a nonpolar side chain? O A) Cys B) Gin OC) Lys D) Arg OE E) Leu