SCIN 131 WEEK 4 QUIZ (Questions With Answers) Latest GRADED A

SCIN 131 WEEK 4 QUIZ (Questions With Answers) Latest GRADED A. What is the empirical formula for a compound if the compound contains 49.97% carbon, 10.51% hydrogen, and 39.52% fluorine by mass?  A. C2H5F2  B. C2H5F  C. C4H10F2  D. C4H10F4 Feedback: Great! Empirical Formula discussed in Chapter 6.2. Question 8 of 25 4.0/ 4.0 Points `One of the compounds listed below represents an empirical formula. Which one?  A. C22H34O10  B. C5H12O2  C. C6H6  D. C6H12O3 Feedback: Great! Empirical Formula discussed in Chapter 6.2. Question 9 of 25 4.0/ 4.0 Points The empirical formula of an insecticide is found to be CHCl, and its molar mass is 290.8 g/mol. How many atoms of carbon are found in a molecule of the insecticide?  A. 4  B. 2  C. 8  D. 3  E. 6 Feedback: Great! Empirical Formula discussed in Chapter 6.2. Question 10 of 25 4.0/ 4.0 Points The golden dart frog is considered the most poisonous vertebrate in the world, with pufferfish close behind in second place. Pufferfish produce a compound known as tetrodotoxin (C11H17N3O8) that is a neurotoxin. In Japan, pufferfish are considered a delicacy and to be licenced to prepare it for others, a chef must prepare it for himself and not die. Paralysis can start in as little as 20 minutes and death in 4-6 hours. You are collecting tropical fish from a little known cove in the pacific and studying your catch. You believe that you have discovered an even more potent neurotoxin that has the same empirical formula as tetrodotoxin, but has a mass of 1277.28. What is the molecular formula for the new poison?  A. C44H68N12O32  B. C133H51N9O24  C. C1240H1680N80O240  D. C22H34N6O16 Feedback: Great! Empirical Formula discussed in Chapter 6.2. Question 11 of 25 4.0/ 4.0 Points The empirical formula of an organic molecule is CH; its molar mass is 104.1 g/mol. What is the molecular formula of the molecule?  A. C2H4  B. C10H12  C. C8H8  D. None of these.  E. C6H6