Homework Answers
Flame ionization detectors (FIDs) burn eluate in the presence of and air. This process produces radicals from carbon atoms, except for carbonyl and carboxyl carbon atoms. The radicals then produce ions. The ions are what produce the FID signal. FIDs are sensitive to most hydrocarbons, such as propane, n‑pentane, and 2‑methylpentane. FIDs are insensitive to nonhydrocarbons, such as oxygen, nitrogen, carbon monoxide, and hydrogen sulfide.
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Which of the following molecules would a flame ionization detector (FID) be sensitive to after separation...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres,...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres, and chlorine molecules by black spheres. If the total pressure in the container is 900. mm Hg, what is the partial pressure of chlorine? 2. What is the partial pressure of helium in a gas mixture of He, Xe and Ar if total pressure is 5.35 atm, temperature is 55 °C, mole fraction of xenon is 0.298, and mole fraction of argon is 0.433?...
8. An isolate of Streptococcus found to be sensitive to O positive for bile solubility test...
8. An isolate of Streptococcus found to be sensitive to O positive for bile solubility test is likely ptochin after incubation on blood agar plate and A. B. Streptococcus pyogenes C. Viridans Streptococcus D. Streptococcus pneumoniae E. Group D enteric Streptococcus treptococcus 9. Which of these test reactions will produce alkaline end products? A. Nitrate reduction and Oxidase tests B. Amylase activity and Lipase activity tests C. Methyl red and Voges Proskauer tests D. Citrate Utilization and Urease tests E....
do numbers 1 through 11 1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. I...
do numbers 1 through 11
1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. Ipletes that have eithe r authorized on this cam. For each question choose the best possible answer. 1. 1 g of hydrogen gas (H) occupies I La 298 K.1 g of nitrogen gas (N.) occupies 1 L 298 K. Which of the following is that (P = pressure) a) PP b) Pre Pec) Pe-Ped ) density of H, -density...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of peptide chains a. Acetic acid b. Alanine O. ATP d. Gracil Report the charge on most aqueous aspartie acid molecules at pH-7. Report the approximate p values for the amino acid whose titration curve is shown below (note there may be more slots for answer than answers). A) Value 1 B) Value 2 c) Value 3 c) Value 4 The structure of a rare...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you obser after completing the halide test, and what would that observation lead you to conclude? Organic Laboratory Technique Primer Sodium Fusions and lon Testing Background: The elements that commonly occur in organic compounds along with carbon, hydrogen, and oxygen, are: nitrogen sulfur, and the halogens. The detection of these latter three elements depends on converting them into water soluble lons (CNS , and X...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres, and chlorine molecules by black spheres. If the total pressure in the container is 900. mm Hg, what is the partial pressure of chlorine? 2. What is the partial pressure of helium in a gas mixture of He, Xe and Ar if total pressure is 5.35 atm, temperature is 55 °C, mole fraction of xenon is 0.298, and mole fraction of argon is 0.433?...
8. An isolate of Streptococcus found to be sensitive to O positive for bile solubility test is likely ptochin after incubation on blood agar plate and A. B. Streptococcus pyogenes C. Viridans Streptococcus D. Streptococcus pneumoniae E. Group D enteric Streptococcus treptococcus 9. Which of these test reactions will produce alkaline end products? A. Nitrate reduction and Oxidase tests B. Amylase activity and Lipase activity tests C. Methyl red and Voges Proskauer tests D. Citrate Utilization and Urease tests E....
do numbers 1 through 11
1 of root CHE 131 Chemical Principles FORMA TEST) AY 2017-18 By signing the prescere form. Ipletes that have eithe r authorized on this cam. For each question choose the best possible answer. 1. 1 g of hydrogen gas (H) occupies I La 298 K.1 g of nitrogen gas (N.) occupies 1 L 298 K. Which of the following is that (P = pressure) a) PP b) Pre Pec) Pe-Ped ) density of H, -density...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of peptide chains a. Acetic acid b. Alanine O. ATP d. Gracil Report the charge on most aqueous aspartie acid molecules at pH-7. Report the approximate p values for the amino acid whose titration curve is shown below (note there may be more slots for answer than answers). A) Value 1 B) Value 2 c) Value 3 c) Value 4 The structure of a rare...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you obser after completing the halide test, and what would that observation lead you to conclude? Organic Laboratory Technique Primer Sodium Fusions and lon Testing Background: The elements that commonly occur in organic compounds along with carbon, hydrogen, and oxygen, are: nitrogen sulfur, and the halogens. The detection of these latter three elements depends on converting them into water soluble lons (CNS , and X...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
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