Category: Chemistry

The purpose of this assignment is to develop your technical writing skills by refining one section of a laboratory report at a time.
In this module, you are to write both the Materials & Methods section, as well as the Data & Results section based on the Labster simulation(s) that you have completed.
Materials & Methods: A minimum of one paragraph is required. This section can be presented as complete paragraphs, or bulleted/numbered lists. Remember, the objective of this section is to present protocols in a manner that allows for them to be fully and accurate reproduced by the reader.
Data & Results: As applicable, present data explored with the Labster simulation(s) as tables, figures or graphics. A minimum of one presentation of data is required. Data should be titled and captioned. In addition, the data presented must be introduced in written paragraph form. These written sections are intended to present the data plainly and clearly without analysis.
Credit is assigned based on a combination of content accuracy, professionalism of presentation and demonstrated effort.

After completing the Labster Simulations for this module, review the attached links for additional learning opportunities on stoichiometry.
The objective of this assignment is to discuss real world applications of stoichiometry.
Specifically, students are tasked with choosing a real world application and detailing the value of stoichiometry to this application.
The ideal submission will prepare sample calculations as a demonstration.
This submission should be approximately 1-page, 12-pt font, 1-inch margins.
Grading is based on completeness of objective, alignment with submission specifications, quality of writing, professionalism of presentation, and demonstrated effort.
https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_ChemPRIME_(Moore_et_al.)/03%3A_Using_Chemical_Equations_in_Calculations/3.02%3A_Equations_and_Mass_Relationships/3.2.04%3A_Food-_Let’s_Cook
http://fdchemie.pbworks.com/w/file/fetch/93335894/Stoichiometry_of_Calcium_Medicines.pdf

Please see attached file for the experiment and answer the questions on the last page along with the lab report.

Written Assignment 3: Mass Relationships for Compounds Answer all assigned questions and problems, and show all work. How many atoms are there in 5.10 moles of sulfur (S)? (6 points) How many moles of calcium (Ca) atoms are there in 77.4 g of Ca? (6 points) What is the mass in grams of 1.00 × 1012 lead (Pb) atoms? (8 points) Describe how you would determine the isotopic abundance of an element from its mass spectrum. (6 points) Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. Calculate the percent composition by mass of C, H, and O in cinnamic alcohol. (8 points) How many molecules of cinnamic alcohol are contained in a sample of mass 0.469 g? (8 points) How many carbon atoms are in 0.469 g of cinnamic alcohol? (8 points) Allicin is the compound responsible for the characteristic smell of garlic. An analysis of the compound gives the following percent composition by mass: C: 44.4 percent; H: 6.21 percent; S: 39.5 percent; O: 9.86 percent. Calculate its empirical formula. What is its molecular formula given that its molar mass is about 486 g? (20 points) Tin(II) fluoride is often added to toothpaste as an ingredient to prevent tooth decay. What mass of fluoride in grams is in 258 g of toothpaste that has 15% tin(II) fluoride? (10 points) What are the empirical formulas of the compounds with the following compositions? (a) 2.1 percent H, 65.3 percent O, 32.6 percent S, (b) 20.2 percent Al, 79.8 percent Cl (20 points)

Solid are rigid because when force is applied, then there is slight vibration occur in solid (no dislocation/displacement) as the particle solid are closely packed and can only oscillate/vibrat around their position

Solid are rigid because when force is applied, then there is slight vibration occur in solid (no dislocation/displacement) as the particle solid are closely packed and can only oscillate/vibrat around their position

Question : Acid-Base Titration
Scenario:
You are performing a titration to determine the concentration of a hydrochloric acid (HCl) solution using a sodium hydroxide (NaOH) solution of known concentration.
Details:
You have a 0.250 M NaOH solution.
It takes 25.0 mL of NaOH solution to neutralize 50.0 mL of the HCl solution.

Discussion 2: Chemistry
Learning Goals
The formation and function of molecules and ionic compounds depend on the bonding of chemical atoms.
Instructions
Please post your initial reply to this discussion prompt by Wednesday at 11:59 PM, then respond to your peers by Saturday at 11:59 PM. An initial response that answers all aspects of the prompt will be at least 150 words.
Replies to peers are supportive and are more than “yes,” “no,” or “I agree.”If you agree with someone’s post, explain why. If you disagree, explain why.
Please compare and contrast the characteristics of polar and nonpolar covalent bonds with ionic bonding, as requested in the discussion prompt.
It is essential to focus on the behavior of electrons involved in these types of chemical bonding.
Providing specific details rather than a brief overview would be greatly appreciated.
Discussion Prompt:
In terms of electron sharing between atoms, compare nonpolar covalent bonds, polar covalent bonds, and the formation of ions.
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A balanced chemical equation give relationship between the reactants and product of reaction in terms of moles ,masses, volume and molecules.

Your paper should be 1-2 pages in length and conform to APA guidelines. Items that should be included, at a minimum, are a title page, an introduction, a body that answers the questions posed in the problem, and a conclusion paragraph that addresses your findings and what you have determined from the data and your analysis. As with all written assignments, you should have in-text citations and a reference page too. Please include any tables of calculations, calculated values, and graphs associated with this problem in the body of your assignment response. Your reference section should include at least one peer-reviewed, scholarly reference.