Chem120 - Study guides, Class notes & Summaries

1. A solution is prepared by dissolving 50 g of KCl (74.6 g/mol) to a volume of 1 L. What is the molarity of this solution? 2. You prepare a solution by dissolving 20 g of NaCl to a volume of 350 mL in water. What is the mass/volume % concentration of this solution? 3. When the following reaction goes in the forward direction, what is the base? 4. You are preparing a buffered solution. So far, your solution contains H2PO4- ions, what would you add to this solution to prepare your buffer sy...

Station 1. You have run an experiment studying the effects of the molecular weight of a compound on the rate of diffusion in agar. Compound X has a molecular weight of 25.3 g/mol and compound Y has a molecular mass of 156.2 g/mol. On two separate agar plates, 0.1 g of each substance were transferred and allowed to diffuse for 2 hours. The results below were obtained. Use this information about this situation to answer the following three questions. 1. Question: (CO 1) What was the independent v...

CHEM120 WEEK 8 FINAL EXAM/ CHEM 120 FINAL EXAM LATEST ACTUAL EXAM 2024/ QUESTIONS AND CORRECT DETAILED ANSWERS|A+GRADE 1. The name of the compound FES04 is iron sulfate 2. Peptide bonds link the amino acids together to make a primary polypeptide sequence. The bonds are AMIDE

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CHEM120 Final Exam (Version 3 Latest-2023)|Verified and 100% Correct Q & A| Chamberlain College of Nursing 1. Question: (TCO 12) Transcription is the process by which DNA passes information to (Pts. : 5) another strand of DNA. transfer RNA. ribosomal RNA. messenger RNA. a new cell.

CHEM 120 FINAL EXAM /CHEM120 WEEK 8 FINAL EXAM LATEST ACTUAL EXAM 2023-2024 QUESTIONS AND CORRECT DETAILED ANSWERS|AGRADE

CHEM120 Final Exam (Version-1, Updated-2023-2024)/ CHEM 120 Final Exam / CHEM120 Week 8 Final Exam / CHEM 120 Week 8 Final Exam: Chamberlain College of Nursing CHEM120 Week 8 Final Exam (Version-1, Updated-2023-2024)/ CHEM 120 Week 8 Final Exam / CHEM120 Final Exam / CHEM 120 Final Exam: Chamberlain College of Nursing

CHEM120 Week 8 Final Exam-with 100% verified solutions-2023-2024

CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+ 1. Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine t he number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. (b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. (Pts. : 10) A. Molarity = moles of solute/liters of solution moles of solute ...