Chemistry I Exam 3 Past Exams, Exams of Chemistry

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Pam's CHEM 1100/1110 E3F227 Fall 2022 l. What is the concentration of a RbOH solution if 48.0 mL of a 0.220 M H2SOs solution is required to neutralize a 25.0-mL sample of the RbOH solution? \F A OSM, . Vo Bom 4 SmL]\' 6 C. 0.422M (D) 0.845 M E. 132M —~ { 2. Inthe reaction, HaPO.}+ HAsO. = HPO. {HeAs00} which two species can act as acids? A. HaPOs", HAsO. = \ B. HoPOs", H2AsOs- C. HoPOs, HPO. D. HAsO,?, HPO, E. HPOs*, HoAsOw” . What is the pH for a 0.667 M NaOH solution? A. 0.12 4 pla 6 08" Using the following unbalanced redox reaction to answer questions 4 and 5. HRO(!) + CrOs-(ag) + Br(ag) > CrOx(ag) + BrOs (aq) + OH(aa) 4. Which species is the reducing agent for the reaction? \ A. 0 B. COs © Br D. CrOr E. BrOs — 2 5. After balancing the reaction in basic conditions, what is the sum of ALL the coefficients in the ‘ equation? be got AC: oF HC On” +4 Ho 0 A. 6 eal ; JH, P eles ao. Ty Roa 4 Gh + oe 'D. 40 | St: BN gent at bregts Dis 27 10107 4 Pr” + Heo WO FTG Os th Theor + e057 | @ 1 i 7 uu November 30, 2022