Use standard reduction potentials to determine the approximate magnitude of the equilibrium constant for the following redox reaction a 2 Cr3+ (aq) + 3 Fe(s) 3 Fe2+ (aq) + 2 Cr(s) - Fe2+ (aq) + 2 e→→ Fe(s) E = -0.44 V Cr3+ (aq) + 3 e Cr(s) E = -0.74 V CHOOSE THE CLOSEST ANSWER IF YOUR EXACT ANSWER IS NOT PRESENT. OA 10-31 OB. 1 OC-1 OD. 1015 OE 10-11 OF. 10-16 OG. 1010 OH. 1030 QU A Moving to another question will save this response.

Q1. The net potential energy between two adjacent ions, EN, is represented by A В E N pn where EN is the net energy in Joule (J), A and B are constants with values of 1.436 J.nm and 7.32 × 106 J.nm, r is the interatomic distance between the two ions in nanometer (nm), and n is a positive number with a value of 8.

Which piece of equipment would you use to measure 7.10 mL of CuSO4 (aq)?

Scientists can learn a great deal about a community's drug use (both legal and illegal) by analyzing the contaminants in wastewater. In a recent study in New York State, chemists measured the concentration of cotinine, a derivative of nicotine that i produced in the liver and excreted in the urine of tobacco users. The chemists found the average cotinine concentrations in the wastewater stream was 1.43 µg/L. a Ι Ι H- b HH H H-C C-N: C=0: TH HH Jonutis/Shutterstock Revell, Introductory Chemistry, 2e, © 2021 W. H. Freeman and Company Cotinine is slightly soluble in water. Using the structure of cotinine, identify any polar covalent bonds that are present in this substance. C-O C-C C-H C-N