Purpose: To use the scientific method to answer a question. Tasks: 1. Watch these videos to learn about some of the terms used in this activity. https://www.youtube.com/watch?v=nqj0rJEf3Ew Biology: Independent vs. Dependent Variables Accuracy versus precision Accuracy and Precision | It's Easy! 2. Collect needed materials. This activity requires at least two things: a) Rubber band […]
Continuing with your study of the degradation kinetics of Y in the presence of excess H+ so that [H+] >> [Y], you are interested in finding the activation energy, Ea,. Recall Y has a unique lmax at 254 nm, with a molar absorptivity ε of 4.55 x 103 cm-1 M-1 at 254 nm and […]
It should be a minimum of 750 words (not including references!). You pick the topic! Choose something that interests you, something that caught your attention in class. It can even be a topic we didn’t cover in detail (or cover at all!) in class. Almost every topic can have a chemistry connection, if you look […]
2. Sketch the following molecules: 3-cyclohexenone 4-ethyl 2,2,5-trimethyl 3-hexanone ethyl butyrate pentanoic acid 2-chloro 4-methyl 2,5-heptadienal 3,4-dichloro 4-ethyl octanal p-chloro phenol 3-bromo 2-chloro 4-methyl hexane 3-cyclopropyl 1,2-cyclopentanediol methyl phenyl ether 3,5-dimethyl 2-heptene-4,5-diol 3. Give two different uses for ethanol. 4. Name two categories of organic compounds (alkanes, aldehydes…) that have very strong characteristic […]
For this topic, you will select two problems from the Chemistry: Atoms First, OpenStax text (in the link there is a book), one problem from each of the following two problem sets: For Problem 1: You MUST select a problem from the end of the chapter “Exercises” from Chapter 3: Problems 95-100; Chapter 4: Problems […]
A student measures the conductivity of a KNO3 solution and determines it to be a strong electrolyte. the student incorrectly…
Class Here is the final exam and the answer sheet. Fill it out carefully by marking the correct answer in the corresponding box. Save it with your name in the file name and send it back to me before NOON TOMORROW. Attached to the test is a list of ions and their solubility, similar to […]
Radiation from a point source varies as the inverse of the square of the distance. Complete the following table to predict the radiation intensity at each distance. The distance in centimeters is 1, 2, 4, 6, 8, 10. The radiation in cpm for the distance of 1 cm is 2000 cpm. These […]
CHEM 162 Solutions can be bought here. Please contact Grafa before buying the answers. You can buy only several files from all quizes and exams. Course Description: The General Chemistry series presents a detailed study of the qualitative and quantitative principles of chemistry for four-year science-related degrees (Science, Engineering, Pre-Med, Pre-Dental, Pre-Pharmacy, Pre-Vet, etc.). […]
Calculate the energy in the form of heat (in kJ) required to change 75.0 g of liquid water at 27.0 °C to ice at –20.0 °C. Assume that no energy in the form of heat is transferred to the environment. (Heat of fusion = 333 J/g; heat of vaporization = 2256 J/g; specific heat capacities: […]
