Aq lab Study guides, Class notes & Summaries

1. Based on what you learned in lab 1, and assuming the relationships shown in figure 2.1 are correct, do ‘prokaryotes’ form a monophyletic group? No 2. Based on figure 2.2, are the groups labeled “Archaea” monophyletic in the “two-domain” hypothesis? Yes 3. Bacillus anthracis - d Vibrio cholerae - f Chlamydia trachomatis - e Lokiarchaeota - c Yersinia pestis - b Thermus aq

CHEM 102 Winter 18 Final Exam (A) Questions and Answers Potentially useful data: x  1 atm = 760 torr = 760 mm Hg 2 a [A]t = – kt + [A]o ΔG° = ΔH° – T ΔS° ln[A]t = – kt + ln[A]o ΔG = ΔG° + RT ln Q 1/[A]t = kt +1/[A]o ΔG° = – RT ln K First order half-life: t1/2 = ln2 / k ΔG° = – nFE° pH  pKa  log base acid  E  E  R T ln Q n F R = 8.314 J mol-1 K-1 F = 96500 C/mol e- 1. Please choose the letter “A” as your a...

Lab Flow - Chem 1A, questions and answers, 100% accurate answers It is often helpful to remember the acronym PASS when using a fire extinguisher. Fill in the word that corresponds with each letter to complete the steps needed for operation of this device. P: Pull the pin. A: Aim the nozzle at the base of the fire. S: Squeeze the lever slowly. S: Sweep the spray from side to side over the fire. Identify the safety equipment designed to deal with each emergency listed. 1. cuts or mino...

Instructions: CHEM 102 General Chemistry I Spring 2015 Exam 3 -­‐ Version A Questions and Answers 1. Do NOT open this exam until you are told to do so. Opening the exam before the start of the exam is considered an act of Academic Dishonesty. 2. All answers must be bubbled into the scantron answer sheet. 3. No credit will be given for answers written on this exam. 4. You must use a #2 pencil to bubble in the answers on your scantron. 5. This is a multiple choice exam consistin...

Balancing Chemical Equations WEEK 3 1. Sodium bromide reacts with calcium chloride to form sodium chloride and calcium bromide. Which of these chemical reactions represents the balanced reaction? a. NaBr + CaCl2 → NaCl + CaBr2 b. 2 NaBr + CaCl2 → 2 NaCl + CaBr2 c. NaBr + 2 CaCl2 → NaCl + 2 CaBr2 d. NaBr + CaCl → NaCl + CaBr Balanced chemical equations have the same number of each atom on each side of the arrow. This equation is correct: 2 NaBr + CaCl2 2 → NaCl + CaBr2 2. The...

K.B. Case Study 2023 K.B. is a 32-year-old woman being admitted to the medical floor for complaints of fatigue and dehydration. While taking her history, you discover that she has diabetes mellitus (DM) and has been insulin dependent since the age of 8. She has undergone hemodialysis (HD) for the past 2 years because of end-stage renal disease (ESRD). Your initial assessment of K.B. reveals a pale, thin, slightly drowsy woman. Her skin is warm and dry to the touch with poor skin turgor, and he...

CHEM120 Week 3 Concepts: Chemical Reactions and Calculations – Download To Score An A+ OL Lab 3: Stoichiometry: Avogadro’s number and molecular calculations / Solution Preparation: From salt to solution Learning Objectives: • Explain the relationship between mass, molecular weight, and numbers of atoms or molecules and perform calculations deriving these quantities from one another • Perform mass-to-mass stoichiometric calculations via conversions to moles • Identify the limiting and e...

Properties of Acids and Bases Assignment and BasesConsider this reaction: KOH + HBR -> KBR + H2O Which is the acid in this reaction? - correct answer HBr Consider this reaction: KOH + HBR -> KBR + H2O Which is the base in this reaction? - correct answer KOH Consider this reaction: KOH + HBR -> KBR + H2O Which statement is most likely true about KOH? - correct answer It turns clear phenolphthalein pink. Consider this reaction: KOH + HBR -> KBR + H2O Which statement ...

In Atomic Spectra lab, Vernier angles (V) in degrees of a Hg-lamp has a linear dependence on wavelength (λ) in nm of line spectra: V = 0.146 λ−10.85 a) Predict the Vernier angle in degree for a line that has a wavelength of 510 nm. b) If a student found a line at a Vernier angle of 76.5°, what is the wavelength in nm of this line? - Answer- a) 63.61 b) 598.288 Best-fit line equation commonly takes "y=mx+b" format. What are y, x, m and b? - Answer- y = y-value x= x-value m = slope ...

CHEM120 Week 3 Virtual Lab: Stoichiometric Calculations Part I and Part II – Download To Score An A+ OL Lab 5: Stoichiometric calculations Identify an unknown compound using gravimetric analysis Learning Objectives: • Explain the relationship between mass, molecular weight, and numbers of atoms or molecules and perform calculations deriving these quantities from one another • Perform mass-to-mass stoichiometric calculations via conversions to moles • Identify the limiting and excess reag...