BMB 200 Study Guide - Midterm Guide: Zwitterion, Scurvy, Vitamin A

29 views8 pages

lemondog658

24 Feb 2020

School

MSU

Department

Biochemistry and Molecular Biology

Course

BMB 200

Professor

professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Bmb 200 exam 1, fs 2018 form 1. Multiple choice questions (40 questions/60 points: an organism containing mitochondria, nitrogen, arginine, chloroplast could be. The negative decimal logarithm of the hydrogen ion concentration in a solution. The point at which an amino acid is electrically neutral. Rank the solutions from most acidic to least acidic. 0. 1 m koh > 0. 001 m koh > 0. 1m kcl > 0. 001 m hcl > 0. 1 m hcl. 1 m kcl > 0. 001mkoh > 0. 001 m hcl > 0. 1 m hcl. 0. 001 m koh > 0. 1 m koh > 0. 1m kcl > 0. 3 m hcl > 0. 001m hcl. 0. 3 m hcl > 0. 001 m hcl > 0. 1m kcl > 0. 001 m koh > 0. 1 m koh. 0. 001m hcl > 0. 1 m hcl > 0. 1m kcl > 0. 1 m kcl > 0. 001 m koh. Hydrogen bonds are an example of a covalent bond. Hydrogen bonds play an important role in the stabilization of proteins.

Related Questions

_____1. Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, HC₂H₃O₂. For 20.0 milliliters of the vinegar 26.7 milliliters of 0.600-molar NaOH solution was required. What was the concentration of acetic acid in the vinegar if no other acid was present?

(A) 1.60 M
(B) 0.800 M
(C) 0.600 M
(D) 0.450 M
(E) 0.200 M

_____2. HSO₄^- + H₂O <===> H₃O⁺ + SO₄^2-

In the equilibrium represented above, the species that act as bases include which of the following?

I. HSO₄^-

II. H₂O

III. SO₄^2-

(A) II only
(B) III only
(C) I and II
(D) I and III
(E) II and III

_____3. Which of the following has the lowest pH?

(A) 0.1 M CuSO₄
(B) 0.1 M KOH
(C) 0.1 M BaCl₂
(D) 0.1 M HF
(E) 0.1 M HNO₃

_____4. What volume of 0.150-molar HCl is required to neutralize 25.0 millilters of 0.120-molar Ba(OH)₂?

(A) 20.0 mL
(B) 30 0 mL
(C) 40.0 mL
(D) 60.0 mL
(E) 80.0 mL

Below are some questions and their answers. I would appreciate it if someone could please explain to me step by step how to get these answers?

1) One buffering component of your blood is the phosphate system that maintains your blood pH at 7.4. The major species of the phosphate system at this pH are likely:a. H3PO4 and H2PO4â b. H2PO4â and HPO42â c. HPO42â and PO43â d. H3PO4, H2PO4â and HPO42â e. H3PO4 only
answer: H2PO4â and HPO42â

2)Which solution is most acidic (has the lowest pH)? a. 0.15M HClO4 b. 0.30M hydrofluoric acid (remember HF is a weak acid) c. 1.5M potassium nitrite d. 1.5M sodium dihydrogen phosphate (NaH2PO4)
answer: 0.15M HClO4

3) The conjugate base of HC2O4â is_________. answer: C2O42â

4) Which of the following will not produce a buffered solution? a. 100 mL of 0.1 M Na2CO3 and 50 mL of 0.1 M HCl b. 100 mL of 0.1 M NaHCO3 and 25 mL of 0.2 M HCl c. 100 mL of 0.1 M Na2CO3 and 75 mL of 0.2 M HCl d. 50 mL of 0.2 M Na2CO3 and 5 mL of 1.0 M HCl e. 100 mL of 0.1 M Na2CO3 and 50 mL of 0.1 M NaOH
Answer: e. 100 mL of 0.1 M Na2CO3 and 50 mL of 0.1 M NaOH

5) Which solution has a greater pH 0.25 M NaHSO3 or 0.38 M NaHSO3? a. 0.25 M NaHSO3 b. 0.38 M NaHSO3 c. the pH of both solutions are the same because sodium bisulfite is a salt and salts are neutral d. the pH of both solutions are the same because bisulfite is amphoteric and amphoteric salts are neutral e. the pH of both solutions are the same because bisulfite is amphoteric and the pH only depends upon the pKa values
answer: e. the pH of both solutions are the same because bisulfite is amphoteric and the pH only depends upon the pKa values

BMB 200 Study Guide - Midterm Guide: Zwitterion, Scurvy, Vitamin A

Document Summary

Get access

Related Documents

MBIO 2360 Lecture Notes - Lecture 3: Sodium Acetate, Tris, Conjugate Acid

CHM 2046 Study Guide - Final Guide: Ph, Sodium Bromide, Reaction Quotient

BCHM-3010 Study Guide - Midterm Guide: Amine, N-Terminus, Column Chromatography

Related Questions