Required Resources Read/review the following resources for this activity: • Textbook: Chapter 5, 6, 11 • Unit 3 lesson Initial Post Instructions For your initial post pick a combination of one of the following molecules, one mass quantity, and one total solution volume from this table. You may not use the same combination as another student so be sure to read any existing peers postings before posting your own. Molecule Mass Volume NaCl 2 g 150 ml CaBr2 6 g 3 L Li3N 1 g 500 ml CaO...

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 reagents in a chemical reaction • Calculate the theoretical, actual and percent reaction yield • Define Avogadro’s number and describe the mole quantification of matter Introduction: Did you kno...

Learning Objectives • Explain the physical concepts of temperature and absolute zero • Define the relationship between pressure, volume and temperature in gases using gas thermometry • Apply the Ideal Gas Law Introduction Just because Celsius, Fahrenheit and Kelvin defined their own temperature scales and named them after themselves, it doesn’t mean that you can’t create your own! In the Ideal Gas Law simulation, you will define the physical concept of temperature and absolute zero. Yo...

Required Resources Read/review the following resources for this activity: • Textbook: Chapter 9, 10, 13 • Lesson Initial Post Instructions While we often do not realize it, acidic and basic solutions are a part of our daily lives.Pick a solution in your home, work, or even outside (be sure to check the label to makesure that whatever you are measuring is nonhazardous and water based). Somepossible solutions are shampoos, beverages, still water in your backyard, contactsolution, etc. Research...

Learning Objectives • Give examples of acids and bases from everyday life • Define pH and identify acids and bases using the pH scale • Apply the Bronsted-Lowry definition of acids and bases to chemical compounds • Describe the amphoteric and self-ionization capacity of water • Calculate the pH of a strong acid and base in solution • Assess whether a neutralization reaction will occur • Evaluate the outcome of simple acid-base reactions Introduction Have you ever consumed an acid o...

1. Question:Joe conducts an experiment to test the effectiveness of a new drug for cancer.Which of the following variables would be easiest to control? 2. Question:A mixture containing 50 grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask ismassed. What is the mass of the sealed flask? 3. Question:Aluminum has a density of 2.7 g/cm3. What would be the mass, in g, o...

Learning Objectives: • Build virtual models to learn about the structure of organic compounds • Draw extended structural formulas of organic compounds Compounds that are based on the carbon atom are known as organic compounds. These compounds commonly contain, nitrogen, oxygen, and hydrogen in addition to carbon. Carbon forms a variety of covalent compounds with varied properties. Carbon containing compounds are formed by sharing electrons, covalent bonds, between atoms. Most biomolecules,...

Objectives: • Identify the differences between chemical reactions and nuclear reactions. • Identify the concept of radioactive decay. • Identify the nuclear changes associated with alpha, beta or gamma decay. • Write the products of nuclear reactions involving alpha, beta or gamma emissions. • Explain the concept of half-lives and complete half-life calculations. Not all atoms are stable. When atoms are born in a nuclear reactor, whether it be the heart of a star or a power plant, a po...

Initial Post Instructions The Discussions in this course are set up deepen your understanding of the material as you make real world connections and employ creative thinking. To get the most from these discussions, full engagement is expected on the part of the student. Be sure to stop by the discussion section frequently, not only to post, but to read the postings of your peers and instructor. Engaging with your peers and learning together is key to this experience. For your initial post, choos...

Hello everyone! For this weeks discussion I will be doing option 2 the topic of genetics in forensic science.