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• CHEM120 Week 4 Virtual Lab: Ideal Gas Law Part I and Part II • Explain the physical concepts of temperature and absolute zero • Define the relationship between pressure, volume and tempe rature 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 physica...

CHEM 120 Week 3 Discussion: Solution Chemistry Molecule Mass V 1 NaCl 2 g CaBr2 6 g 3 Li3N 1 g 5 CaO 7 g 1 For example, one possible combination would be 2 gram s of NaCl in 500 ml of solution. Then, give each of the following for your unique combination being sure to show all of your work: 1. %mass/volume concentration 2. Molarity 3. Osmolarity Make sure to post at least two high quality posts. Follow-Up Post Instructions Respond to at least one peer or the instructor. Further the dialogue by p...

CHEM 120 EXAM 1 REVIEW – DOWNLOAD TO SCORE AN A+ • Scientific method: method of investigation. involves cycles of observation and interpretation. observations, hypotheses, laws, and theories. • Hypothesis: testable explanation. • Independent variable: What scientist is controlling or changing. • Dependent variable: Depends on independent variable. Expected change. Measurable. • Positive control: Group or condition with known outcome. • Negative control: No change is expected. • E...

CHEM120 Week 3 Exam 1 – With 100% Correct Answers- Download To Score An A+ You're conducting a study on the effects of carrot consumption on blood pressure. you will be giving carrots to part icipants in your study and monitoring their blood pressure over several months B the amount of carrots consumed by the participant You have an isotope that has a mass number of 195 and contains 116 neutrons what isotope is this C Gold 79 Determine which ion has the ground state electron configuration of ...

CHEM 120 WEEK 3 QUIZ- WITH 100% CORRECT ANSWERS Week 3 Quiz There are 6 multiple choice and two short answer questions. Each question is worth 5 points. To answer multiple choice questions, highli ght the right answer. To answer the short answer questions, show your work and calculations. DO NOT CHANGE THE FORMAT OF THE QUIZ PLEASE. 1. (TCO 5) Which coefficient is placed in front of O2 to complete the balancing of the following equation? C5H8 + ? O2 --> 5 CO2 + 4 H2O 1 3 5 6 7 2. TCO 5) Which...

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...

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...

CHEM120 Week 3 Virtual Lab: Solution Preparation Part I and Part II OL Lab 6: Solution Preparation: From salt to the solution Learning Objectives: • Prepare an aqueous solution of a specific con centration from a pure salt • Correctly use an analytical balance, a volumetric pipette, a volumetric flask, and a measuring cylinder • Explain the relationship between molarity and mass concentration Introduction Prepare to become a solution champion! In this simulation, you will complete all the ...

CHEM120 Week 3 Assignment: Stoichiometry and Solution Chemistry – 100% Correct Answers Week 3 Assignment: 15 points 1. Balance these chemical reactions: (2 point each, 8 points total) 2 NaBr + 1 CaF2 → 2 NaF + 1 CaBr2 2 HCl + 1 CaCO3 → 1 CaCl2 + 1 H2O + 1 CO2 1 FeCl3 + 3 NaOH → 1 Fe(OH)3 + 3 NaCl 1 CaCO3 + 1 H2SO4 → 1 CaSO4 + 1 CO2 + 1 H2O 2. Calculate the formula mass of Al2(SO4)3. (2 points) 342.15 g/mol 3. Calculate the mass of 2.5 moles of NaOH. (1 points) 99.75 g/mol 4. For the ba...

CHEM120 Week 2 Discussion: Atomic Structure – Ibuprofen (Option 1) Initial Post Instructions Option 1: Your initial post in the discussion this week consists of two parts. First, choose a molec ule used in healthcare, industry, or found in a natural source and discuss the importance of this molecule. Be sure to include at least one outside source and make sure to follow APA citation guidelines. In the second part of your initial post, we will be practicing naming ionic and covalent compounds a...