Category: Chemistry

  • 4.3 balancing equations practice

    answer all questions in pdf and keep it on the pdf file

    Attached Files (PDF/DOCX): 43 Balancing Equations Practice.docx

    Note: Content extraction from these files is restricted, please review them manually.

  • Temperature and Solubility of Salts

    **This is a simulated lab assignment **

    Use NaCl and KCIO3 as your solutions for this lab report. Include a hypothesis, results and conclusion. Add a graph that

    shows the relationship visually:

    • KClO3 solubility increases sharply with temperature.
    • NaCl solubility increases slightly.

    Report

    1 -Hypothesis:

    • State a clear prediction before doing the experiment.

    (Example: If the temperature of water increases, then the solubility of salts will increase.)

    • Place this at the top of the report, labeled Hypothesis.

    2 -Results:

    • Include a table or graph showing the amount of each salt dissolved at different temperatures.
    • Make sure the table has labeled columns (e.g., Temperature, KClO3, NaCl).
    • Include a brief description of the trend: e.g., Solubility of KClO3 increases sharply; NaCl increases slightly.
    • Label this section Results.

    3 -Conclusion:

    • Summarize the overall findings and relate them to the hypothesis.

    (Example: The solubility of both KClO3 and NaCl increased with temperature, supporting the hypothesis.)

    • Mention any unusual observations or errors briefly.
    • Label this section Conclusion.

    Add Lab Equipment Images

    1. Include only equipment used: beaker, test tube, stirring rod, hot plate, thermometer.
    2. Place images near Materials, Results, or next to the table/graph.
    3. Use small, cartoon-style icons and label if needed.
    4. Keep consistent style and neat alignment.
  • Chemistry postlab problem solving

    Solve 8 questions based on lab data and resource that I provide. This is macro molecule course in college, so experts required. (ignore number 1)

    Attached Files (PDF/DOCX): Exp 4-Exploration of Polymers S26 (1).pdf, Chem 204L Notebook.pdf, Exp 4 – Exploration of Polymers Post-lab S26.pdf

    Note: Content extraction from these files is restricted, please review them manually.

  • Chemistry Lab report 6

    Chemistry Virtual Labs

    General Instructions

    All labs have two parts.

    Part 1

    VIDEO TO HELP CONDUCT LAB/ LAB REPORT:

    Balancing Chemical Reactions Lab Link – Worksheet 1

    Virtual Lab Exercises – To be carried out using a simulated lab or a worksheet. If it is a simulated lab, you need to submit a lab report. Otherwise, answers in a word document should be sufficient. Please follow the link below to understand how your lab report should be developed:

    http://www.utm.edu/staff/cerkal/report.html

    Week 6 Lab

    Balancing Chemical Reactions and Determining Empirical and Molecular Formulae

    Part 1

    Complete the worksheets,

    1. Balancing Chemical Reactions Simulated Lab Lab Report (Worksheet 1)

    Visit: https://phet.colorado.edu/en/simulation/balancing-chemical-equations” rel=”noopener noreferrer” target=”_blank”>https://phet.colorado.edu/en/simulation/balancing-chemical-equations

    and run the simulation by clicking on the start button.

    Get yourself familiar with the simulation. Complete the Introduction part of the simulation. Once you get the correct answers, move to the Game part of the lab. Complete levels 1, 2, and 3 and prepare a lab report.

    You must complete all 3 levels.

    The lab report must include balanced reaction mechanisms.

    You must write a lab report to explain your experiment, the method, and the conclusions being the balanced chemical reactions.

    1. Complete the balancing chemical reactions worksheet Worksheet 2
  • Problem Solving

    Lesson 7 (Chapters 9 & 5)

    Discussion Topic: Problem Solving

    Instructions: Your initial post over the material outlined above for Topic 1

    To make your posts, select on START A NEW THREAD above:

    State your name and Problem Numbers in the title (Title: Jane Doe, Problems 9.85 and 5.76).

    In addition to your initial posts to the topics in this Week 15 Discussion you are required to also reply to at least two classmates’ original posts, and each reply must include direct questions. Your replies can add additional insight to your classmates’ opinions, suggest other alternative approaches, or anything similar. Be sure to read the follow-up posts to your own posts and reply to everyone who comments on your post.

    For this topic, you will select two problems from the 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 Chapter 9 problem from the end of the chapter “Exercises” from problem number 70-105.

    For Problem 2: You MUST select a Chapter 5 problem from the end of the chapter “Exercises” from problem number 51-86.

    Attached Files (PDF/DOCX): Chemistry-LR.pdf

    Note: Content extraction from these files is restricted, please review them manually.

  • Why tertiary alkyl halides cannot give SN2 reactions?

    Why tertiary alkyl halides cannot give Sn2 reactions?

    Requirements:

  • Request for high quality original explanation and quick resp…

    The more specific details are, the better help with revive, please provide, quick, original, thanks.

    Requirements:

  • Difficulty understand of chemistry

    Chemistry chemical equation and rection

    Requirements:

  • Find Molar mass..?

    At 298 K, 1.00 g of a solute is dissolved in 100 g of benzene. The solution shows a lowering in vapour pressure from 100 mm Hg to 98 mm Hg. If the solute undergoes association to form dimers, calculate:

    Molar mass of the solute

    Degree of association

    vant Hoff factor (i)

    Given: Molar mass of benzene = 78 g/mol

    Requirements: