Postlab - Study guides, Class notes & Summaries

Postlab 2: Introduction to Bacterial and Archaeal Diversity Directions: Complete the questions below by the start time of your next lab. Be precise in your answers and pay attention to your reasoning. Your postlab is worth 5 points total. 1. (1 pts) Fill in the concept map below with the following terms related to microbe metabolism: chemo- , hetero-, chemical, organic, photo-, light, inorganic, auto-, litho-, organo-. Some terms may be used more than once. 2a. (0.25 pts) How many differen...

Assume you have a mixture that is 20% acetone 50% cyclohexane, and 30% dimethyl carbonate. Sketch a GC of this mixture. Label each peak and make each peak roughly the correct size. - correct answers On a graph of abundance vs time, acetone comes off first, then cyclohexane, then dimethyl carbonate. The sizes are in a 2:5:3 ratio. The pKa of benzoic acid is 4.2. At a pH of 2.0, 4.2, and 12.0, in what state(s) of protonation will benzoic acid be? And in which layer (water or organic) would...

BIS 2C Postlab 3: Body Form in Naegleria Across Environments (Graded A+)

Postlab 1: Introduction to Phylogeny and Tree-Thinking Directions: Complete the questions below by the start time of your next lab. Be precise in your answers and pay attention to your reasoning. Your postlab is worth 5 points total. Use the following data matrix to answer the questions below. Follow the conventions shown to you in lab this week to answer the questions. If you’re having trouble, be sure to watch the learning glass video on unrooted trees and parsimony. 1 2 3 4 5 6 Great...

BIS 2C Postlab 7: Introduction to Metazoa (Graded A+)

Chem 241 Lab 5 postlab Aaron C Ong TOTAL POINTS 16 / 16 QUESTION 1 1 Page 1 **please tag all pages in your upload** 9 / 9 + 9 pts Correct + 1 pts Mass listed + 1 pts mp listed + 1 pts % yield calculated + 1 pts state stereoisomer they made + 2 pts draw correct conclusion about mechanism + 3 pts correctly drawn mechanism + 1.5 pts partially correct mechanism (e.g. wrong arrows) + 0 pts All blank / incorrect - 1.8 pts Late QUESTION 2 2 Page 2 - Questi...

Chem 241 Lab 6 Postlab Estella Rachana Khieu TOTAL POINTS 45.5 / 49 QUESTION 1 1 Page 1 Q1/2 4 / 4 - 0 pts Correct - 2 pts Q1 - wrong ID - 1 pts Q2 mass missing - 0.5 pts Q2 yield < 20% (theoretical yield 3-3.75 grams depending on which benzoic acid) - 1 pts Q2 mp missing - 0.5 pts Q2 mp off by more than 10C benzoic acid: 122C 2-methylbenzoic acid: 102C 4-methylbenzoic acid: 179C 2,5-dimethylbenzoic acid: 132C - 4 pts All blank / wrong - 9.8 pts Late (a...

Always wear what in lab? - Correct Answer goggles What is appropriate clothing? - Correct Answer covers torso, arms to elbows, legs to ankles, and feet (close toed) girls must... - Correct Answer tie back long hair place backpacks and belongings in... - Correct Answer the hallway locker and secure them must learn how to use and the location of what safety equipment? - Correct Answer fire blankets, eye washes, showers how should you prepare for lab before? - Correct Answe...

consider what would have happened if one of the other mechanisms had been correct. The initial reaction is run with arbitrarily selected concentrations of reactants. Then, concentrations are varied systematically. Consider the following possibilities and select the correct outcome for each experiment. (a) If the first mechanism is correct, what should happen to the rate if the concentration of iodide ion is doubled and other concentrations are held constant?

To quantitatively "throw out" a measurement, you must perform a statistical test on your data called a Q-Test. The formula for the Q-test is Qcalculated = gap/range where gap = (questionable value ! next closest number) and range = (largest number ! smallest number). Qcalculated is then compared to Q table. If Qcalculated > Qtable then the questionable datum can be discarded