4. A compound having the molecular formula C5H10O2 exhibits the following H-NMR-Figure 4a Figure 4a Figure 4b Multiplet @ 1.46 ppm Multiplet @ 1.22 ppm Triplet @ 2.20 ppm Triplet @ 0.78 ppm and 13C-NMR-Figure 4b spectra. Identify the compound. The spin multiplicities are indicated below. 'H-NMR (400 MHz, CDCl3 at 300K) 8: 11.8 (s), 2.20 (t), 1.46 (m), 1.22 (m), 0.78 (t). 13C-NMR (400 MHz, CDCl3 at 300K) 8: 180.8 (s), 33.8 (t), 26.8 (t), 22.4 (t), 3.58 (q).

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1. Which of the following is not a step in preparing a water sample container?a. All sample containers must be dark in colorb. The type of sample container and the level of cleaning required depend on the type of sample to be takenc. All sample containers must be thoroughly cleaned in the laboratory before sampling is carried outd. The number of containers prepared must always be in excess of what is needed, for quality assurance, quality control and reserves 2. The purpose of environmental sample analysis is..a. To determine the origin and concentration of chemicals in the environmentb. To determine the origin, concentration of chemicals and/or pollutants in the environmentc. To determine the concentration of a chemical in the environmentd. To determine the cause and concentration of pollutants in the environment

Inbo (534) Conv I Balar b Ansv Post CHE 101 C X с Chec bartl bartl The b My C Unkr O Sear E I ma G what app.101edu.co/# Bryant's Gmail Cascadia Canvas Lo... T GSBA Scholarship L... HOMEGROWN TRA... Learn Touch Typing... C The Science of Well... Investor360° ® Login ClickUp Reading list >> Question 28 of 40 Submit The OH concentration in an aqueous solution at 25 °C is 6.1 x 10 5. What is [H*]? 1 4 C 7 8 9 +/- х 100 + 10:59 PM e Type here to search 59°F 8/26/2021 LO (8)

Please solve parts d, e, and f.

Edit View History Bookmarks People Tab Window Help O Questi x L 2021-0 x M [EXTE! X Dashb x O Launc O Launcix S Class eto.mheducation.com/ext/map/index.html?_con%3con&external_browser=0&launchUrl=https%253A%252F%252 20 Problem Set Saved attempts left Check my work Enter your answer in the provided box. Find AG for the following reaction, at 25°C, using AH and S values. f NHẠCI(s) → NH3(g) + HCI(g) kJ Standard Thermodynamic Values at 298 K Substance or Ion AH (kJ/mol) (J/mol K) HCI(g) HCI(aq) NH3(g) • NH3(aq) NH,CI(s) -92.3 186.79 55.06 -167.46 -45.9 193 -80.83 110 -314.4 94.6 ( Prey 6 of 15

O Course Home b Chemistry Question | bartleby G indivuials with austium good to -> A openvellum.ecollege.com/course.html?courseld=16561285&OpenVellumHMAC=446c877376a9bc7ac878d8ad119f4717#10001 Q * E Apps O Maps E Connect - To Do As... O OCCC Moodle P chem work b help Gmail YouTube Balance Chemical E. II Review | Constants | Periodic Table A carbon atom is chiral if it is bonded to four different groups. For example, CHCIBII is chiral, but CCl,BrI is achiral because some of the bonded groups are the same. If a chiral carbon atom is present, then that molecule has a non-superimposable mirror image called an enantiomer. (Figure 1) Part A Identify all the chiral atoms in the below structure by right-clicking* a chiral atom to bring up a menu that includes "Atom Properties." Click on Atom Properties then click the checked box next to the Map field to clear the checkmark. Then enter "1" in the Map *Mac users: Use an equivalent for right- field box to label that chiral carbon atom. clicking.…