Chem120 week 6 Study guides, Class notes & Summaries

CHEM120 Week 7 Assignment: Biochemistry Part 2 and Flow of Genetic Information – Download To Score An A+ Laboratory 11: DNA, mRNA and Polypeptide Learning Objectives: • Learn about nuclei c acids • Predict the sequence of a complementary strand of DNA based on the sequence of DNA • Predict the sequence of mRNA based on the sequence of DNA • Predict the sequence of a • polypeptide based on the sequence of mRNA Information stored in DNA (genes) is responsible for all our bodily functio...

CHEM120 Week 8 Assignment: Group Project Presentation – Vitamins & Minerlas How vitamins and minerals/trace elements affect health/human body SELINA GALLARDO CHEMISTRY 120 PROFESSOR FIRT H What are vitamins and minerals? ► Vitamins are living (organic) substances which are created from plants or animals. Now, minerals are lifeless (inorganic) elements that occur from the soil along with water furthermore are absorbed from plants or consumed by creatures. ► Efficacy is the ability of a supp...

CHEM 120 Week # 1 DQ 1 – Scientific Method and Calculations CHEM120 Week 1 Scientific Method & Calculations Let’s explore the scientific method. Here is the situation: We are planting a garden. We have a variety of bulbs & potted plants. We do not have any directions on how or when to plant each of these items. We do not have any gardening books, magazines, or access to the Internet (Oh, the horror!). We need to observe a number of characteristics for these plants. What are some...

6. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 25 degrees C. Show your work. (Points : 5) Using Charles’ Law, ( V1/T1) = (V2/T2). First, convert temperature to KELVIN (T1 = t1 +273) Thus, T1 = 95 + 273 = 368. We have V1 (165 mL) & T2 = (25 + 273) = 298. V2 = (V1*T2)/T1 = (165 mL*298)/368 = 133.6 mL. 0 7 Short 16 7. (TCO 6) A sample of helium gas occupies 1021 mL at 719 mmHg. For a gas sample at constant tempera...

CHEM120 Week 4 Assignment: Gas and Acid/Base Chemistry – With 100% Correct Answers 1. Solve these ideal gas law problems. Show all work for credit. a. A gas occupies 250 mL at 739 mmHg. For a ga s at constant temperature, determine the volume of gas at 514 mmHg. (1 points) P*V=P*V 739*250 = 514*V 184750/514 = 359 b. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1 points) 22.4L/mol 4*(1/22.4) 0.179 c. A sample of nitrogen (N2) has a volume...

CHEM 120 Week # 1 DQ 1 – Scientific Method and Calculations CHEM120 Week 1 Scientific Method & Calculations Let’s explore the scientific method. Here is the situation: We are planting a garden. We have a variety of bulbs & potted plants. We do not have any directions on how or when to plant each of these items. We do not have any gardening books, magazines, or access to the Internet (Oh, the horror!). We need to observe a number of characteristics for these plants. What are some...

CHEM120 Week 2 Virtual Lab: Ionic and Covalent Bonds Part 1 and Part II – Download To Score An A+ OL Lab 2: Periodic Table/Ionic and Covalent Bonds Learning Objectives • Describe the str ucture and organization of the periodic table • Classify elements of a family based on their location in the periodic table • Distinguish metals from other element classes based on typical characteristics • Use the flame color test to identify metals based on their position in the periodic table • Ex...

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 ...

CHEM 120 Week # 1 DQ 1 – Scientific Method and Calculations CHEM120 Week 1 Scientific Method & Calculations Let’s explore the scientific method. Here is the situation: We are planting a garden. We have a variety of bulbs & potted plants. We do not have any directions on how or when to plant each of these items. We do not have any gardening books, magazines, or access to the Internet (Oh, the horror!). We need to observe a number of characteristics for these plants. What are some...

CHEM120 Week 5 Concepts: Redox and Organic Chemistry – Download For Revision And Score An A+ OXIDATION-REDUCTION Reduction and oxidation are intertwined concepts that are important to understand ing some of the most important chemical reactions in the human body. In this lesson, we will explore the relationship between these terms and the how to identify what chemicals in a reduction/oxidation reaction (redox reaction) are playing which parts. 1. Redox reactions involve a transfer of: ▪ Nucl...