BIOC 2580 Study Guide - Midterm Guide: Cyanogen Bromide, Elastase, Carbonic Anhydrase

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amaranthweasel562

21 Dec 2015

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Oct. 26 2015, 11:30 am 12:45 pm rozh 101/104. Total pages in this midterm: 11: print your full name and student number in the spaces provided at the top of each page, this exam consists of 2 sections. Please attempt all questions: answer the multiple choice questions in section 1 on the scantron sheet provided, use only pen to answer the questions in section 2. Do not use red pen: hand in all materials including this exam booklet. Answer section 2 in the space provided on this exam. Not use white-out or ink on the scantron sheet: use a soft black lead pencil only on the scantron sheet and erase cleanly if needed. You may: if you need to use the bathroom, notify an invigilator and you will be escorted to the. Rules on academic misconduct. unclear answers or writing. etc. or similar aid under any circumstances, unless previously authorized. leave the room between noon and 12:30 pm. bathroom.

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A. COMPLETE THE ANSWER SHEET: write your name, banner id # and the date in the spaces provided on the scantron. All answers must be on the scantron and this exam. B. Read each item carefully; select the word, phrase or expression that best completes the test item. Indicate the answer blackening the appropriate space on your answer sheet. You MUST erase completely to receive credit for an erased item. This AND the scantron must be turned in. All questions are worth 5 points. R = 0.08206 (atm middot L)/(mol middot K) = 8.314 J/(mol middot K) pH = - log[H_3 O^+] pH + pOH = 14 = pK_a + pK_b [OH^-][H_3 O^+] = 10^-14 = K_a times k_b (at least in water, at 25 degree C) pH = pKa + log([base]/[acid]) poH = pK_b + log ([acidy]/[base]) K_p = K_c(RT)^da For a salt that dissociated into a cation with a coefficient of n and an anion with a coefficient of m: Molar Solubility = squareroot K_/n^m^x = - b plusminus squareroot b^2 - 4ac/2a where 0 = ax^2 + bx + c Which of the following solutions would have the second lowest pH? Assume all their concentrations are 0.10 M at 25 degree C. The acid is followed by its K_a value. A) HF, 3.5 times 10^-4 B) HCN, 4.9 times 10^-10 C) HNO_2, 4.6 times 10^-4 D) HCHO_2, 1.8 times 10^-4 E) HClO_2 1.1 times 10^-2 Which of the following are false about systems at equilibrium? A) The rate of the forward and reverse reactions are the same. B) The concentrations of each component are equal. C) The concentrations of each component don't change over time. D Catalysts do not affect the equilibrium. E) This symbol is used in a reaction where an equilibrium is present: - The reaction below has a K_c value of 3.64 times 10^-3. What is the value of K_p for this reaction at 25 degree C? CO_2 (g) C(s, graphite) = 2 CO(g) A) 3.64 times 10^-3 B) 6.09 times 10^-6 C) 8.90 times 10^-2 D) 1.49 times 10^-4 E) 2.17 Express the equilibrium constant K for the reaction in question 3. A) [CO(g)]/[CO_2(g)][C(s)] B) [CO(g)]/[CO_2(g)] C) [CO(g)]^2/[CO_2(g)] [C(s)] D) [CO_2(g)]^2 E) [CO(g)]^2/[CO_2(g)]

BIOC 2580 Study Guide - Midterm Guide: Cyanogen Bromide, Elastase, Carbonic Anhydrase

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