ANSWER_KEY_Exam_3_Version_A.pdf

ANSWER_KEY_Exam_3_Version_A.pdfBINGHAMTON UNIVERSITY (SUNY) DEPARTMENT OF CHEMISTRY VERSION A (ANSWER KEY) CHEM 111 – Chemical Principles (Fall 2022)Exam 3 Nov. 28, 2022 Time: 90 minutes (1 hr 30 minutes); Answer all questions 1. Which of the following is/are expected to affect the rate of a chemical reaction? a. Increasing the reaction temperature b. Decreasing the reactant concentrations c. Doubling the volume of the reaction container A) A only B) B only C) C only D) A and B 2. For the reaction IO3 – (aq) + 5I– (aq) + 6H+ (aq)  3I2(aq) + 3H2O(l) the rate of disappearance of I– (aq) at a particular time and concentration is 2.6  10– 3 mol/(L · s). What is the rate of appearance of I2(aq)? A) 1.6  10–3 mol/(L · s) B) –1.6  10–3 mol/(L · s) C) 7.8  10–3 mol/(L · s) D) 4.3  10–3 mol/(L · s) 3. For the reaction 2N2O5(g)  4NO2(g) + O2(g)