Category: Chemistry

Complete thequestions in the document. Answer where needed and workout in other areas. See attached document

GENERAL CHEMISTRY IS WHAT THE CLASS CALLED MAKE SURE YOU KNOW 100% WHAT IT IS BEFORE CHOOSING ME.
I need help with a segment in the class its basically couple videos that needs to be watched followed up by quizes and tests and probably a review. I need someone who knows 100% they can pass all those with an atleast 95% or higher. Its common sense class just pay attention and you should be able to complete it. Im currently in the hospital helping and have 0 time to be able to finish it so I trully would appreciate if someone can help me out and I will reward you if you finished quick. My current grade is a 93% and I need atleast a 95-96% in the class so if your a hero and know for a fact you can rise it up, dont be shy and hit me up!!! Thank you agian please dont choose me if you dont think you can I appreciate the honesty.

Data and Postlab Questions – Redox Titration
How will you collect data for this experiment?in-personYour data should be recorded and analyzed using the provided Excel file: Excel Template
Standardization of Potassium Permanganate Solution
Measurements for Standardization of Potassium Permanganate Solution
Enter your measurements from lab with the correct number of decimal places
Trial 1
Trial 2
Mass of empty flask (grams)
98.056126.378
Mass of flask + sodium oxalate (grams)
98.062126.533
Initial volume of KMnO4 (mL)
0.000.00
Final volume of KMnO4 (mL)
206.0044.70
Determination of Concentration of Unknown Oxalate Solution
Measurements for Determination of Concentration of Unknown Oxalate Solution
Enter your measurements from lab with the specified units and correct number of decimal places
Trial 1
Trial 2
Volume of oxalate solution (L)
0.0250.025
Initial volume of KMnO4 (mL)
0.000.00
Final volume of KMnO4 (mL)
37.0017.50
Attendance
This QR code needs to be scanned by your TA to confirm that you have completed data collection and cleaned up your workspace.
Standardization of Potassium Permanganate Solution
Calculations for Standardization of Potassium Permanganate Solution
Calculate the following values with the correct number of decimal places.
Trial 1
Trial 2
Mass of empty flask (grams)
98.056
126.378
Mass of flask + sodium oxalate (grams)
98.062
126.533
Mass of sodium oxalate (grams)
Moles of sodium oxalate (mol)
Initial volume of KMnO4 (mL)
0.00
0.00
Final volume of KMnO4 (mL)
206.00
44.70
Volume of KMnO4 added (mL)
Volume of KMnO4 added (L)
Moles of KMnO4 (mol)
Molarity of KMnO4
Average Molarity of KMnO4
Calculations for Determination of Concentration of Unknown Oxalate Solution
Calculate the following values with the correct number of decimal places.
Trial 1
Trial 2
Volume of oxalate solution (L)
0.02500
0.02500
Initial volume of KMnO4 (mL)
0.00
0.00
Final volume of KMnO4 (mL)
37.00
17.50
Volume of KMnO4 added (mL)
Volume of KMnO4 added (L)
Moles of oxalate (mol)
Molarity of oxalate
(4pts)
Average Molarity of oxalate
Using your data, answer the following prompt in at least one full paragraph. Submissions must be typed directly into LabFlow.
1. The unknown oxalate solution was prepared by dissolving around 5 grams of sodium oxalate in 1 liter of water. This was not an exact measurement and discrepancies do arise between bottles of solution. Discuss in at least two sentences how accurate your oxalate concentration is based on this information.

VSEPR (Valence Shell Electron Pair Repulsion) Theory is a model used in chemistry to predict the geometry of individual molecules based on the number of electron pairs in the molecule’s valence shell. The theory assumes that electron pairs in the valence shell of an atom repel each other and will arrange themselves to minimize repulsion, thus determining the shape of the molecule.
According to VSEPR Theory, the electron pairs around a central atom repel each other and will orient themselves as far apart as possible to minimize repulsion. There are two types of electron pairs: bonding pairs and lone pairs. Bonding pairs are involved in covalent bonds, while lone pairs are not. The repulsion between these pairs determines the geometry of the molecule.
The VSEPR model predicts several molecular geometries, including linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral, among others. The geometry is determined by the number of electron pairs around the central atom, including both bonding and lone pairs.
The applications of VSEPR Theory are vast and crucial in various fields:
Molecular Structure Prediction: VSEPR Theory allows chemists to predict the three-dimensional structure of molecules, providing insights into their chemical and physical properties.
Chemical Bonding: The theory helps in understanding the nature of chemical bonds and how they influence molecular geometry, polarity, and reactivity.
Molecular Properties: By predicting molecular geometry, VSEPR Theory enables the determination of molecular properties such as dipole moment, polarity, and bond angles, which are crucial in understanding molecular behavior.
Drug Design: Understanding the three-dimensional structure of molecules is essential in drug design to predict how molecules will interact with biological targets in the body.
Environmental Chemistry: VSEPR Theory aids in understanding the structures of atmospheric molecules and pollutants, which is essential in environmental chemistry for predicting their behavior and impact.
Overall, VSEPR Theory provides a fundamental framework for understanding molecular geometry and has wide-ranging applications in chemistry, biology, materials science, and environmental science.
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hello everyone, i need help with my chemistry homework, i will send the information when this gets assigned to tutor

The aim of this assignment is to assess your ability to test food products, analyse the results and then present the data in a way that informs the general public on the safety of these food products using an infographic.
TASK
You will collect and analyse data on the amount of cyanide in cassava products found on sale in Melbourne. There are two marks for the in class activities (one for each week). You will work in pairs in class but you submit individual assignments.
Week 5: you will analyse the food products in the laboratory.
Week 6: you will analyse the data and be shown how to create graphs in Excel and discuss what makes a meaningful infographic.
Output: You will prepare an infographic, including one graph of your results, suitable for the general public. The results will be interpreted using the guidelines form FSANZ (Food Standards Australia New Zealand) on the safety of cyanide in food products.
REQUIREMENT/LENGTH FOR INFOGRAPHIC
Individual assignment. One page submitted as a single PDF.
There is no word limits. Infographics have very few words on them. If you write a lot, this will bring down your grade on the design aspects of the poster.
You must include at least one graph of your results. It does not have to be presented as a traditional scientific graph.

Only organic chem expert
if you cannot do the following, do not absolutely bid and waste your time and mine
Answer all questions comprehensively, addressing every part.
Provide detailed work for all questions, showing each step.
Emphasize drawing alongside explanations; visual representation is crucial.
Avoid merely answering; treat it as an exam, ensuring full answers with explanations and steps.
Strictly refrain from plagiarism; no AI, ChatGPT, or Chegg usage.
No internet access allowed during the exam.
Handwrite all responses, directly writing on the assignment preferred
You have to draw molecules and show all arrow movements. Do not explain in words, SHOW AND DRAW

The aim of this assignment is to assess your ability to test food products, analyse the results and then present the data in a way that informs the general public on the safety of these food products using an infographic.
TASK
You will collect and analyse data on the amount of cyanide in cassava products found on sale in Melbourne. There are two marks for the in class activities (one for each week). You will work in pairs in class but you submit individual assignments.
Week 5: you will analyse the food products in the laboratory.
Week 6: you will analyse the data and be shown how to create graphs in Excel and discuss what makes a meaningful infographic.
Output: You will prepare an infographic, including one graph of your results, suitable for the general public. The results will be interpreted using the guidelines form FSANZ (Food Standards Australia New Zealand) on the safety of cyanide in food products.
REQUIREMENT/LENGTH FOR INFOGRAPHIC
Individual assignment. One page submitted as a single PDF.
There is no word limits. Infographics have very few words on them. If you write a lot, this will bring down your grade on the design aspects of the poster.
You must include at least one graph of your results. It does not have to be presented as a traditional scientific graph.

Only organic chem expert
if you cannot do the following, do not absolutely bid and waste your time and mine
Answer all questions comprehensively, addressing every part.
Provide detailed work for all questions, showing each step.
Emphasize drawing alongside explanations; visual representation is crucial.
Avoid merely answering; treat it as an exam, ensuring full answers with explanations and steps.
Strictly refrain from plagiarism; no AI, ChatGPT, or Chegg usage.
No internet access allowed during the exam.
Handwrite all responses, directly writing on the assignment preferred
You have to draw molecules and show all arrow movements. Do not explain in words, SHOW AND DRAW

hello I need someone to complete this lab report for me I will provide the outline and please it should follow it exactly.Also it doesn’t need to be that long around 1-3 pages is good enough. I will provide all the information needed and some references to make it easier. Please use the exact data I have in the pdf attached.