Responses to Chemical Equations » Essay Furious


Answer
Responses to Chemical Equations

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Response to Kassandra Swygard
Dilution involves the process of creating a new solution from an innitial one, by reducing the latters concentration. This generally means addition of more solvent, rather than a solute, to a solution. In this case we are going to dilute Kassandra’s solution. She used the following variables;
7g of calcium oxide (CaO) in 500ml of solution. The dilution equation of nay solution is given as follows;
M1 v1 = M2 V2, where M1- is the molarity of the initial solution
V1- volume of the initial solution
M2- Molarity of the final solution
V2- Volume of the final solution
In order to prepare a 0.1 M solution from Kassandra’s 0.25M CaO solution, we need to calculate the volume of solvent required to make the solution.
Therefore;
M1 V1= M2V2
0.25M X 0.5 L = 0.1M x V2
V2 = 1.25L will be needed to in the preparation of the final solution.
To finalize, pour 0.75L into the volumetric flask containing the initial stock solution of 0.5 L up to 1.25 L mark. This can be done by two 1000ml volumetric flask.
Responses to Chemical Equations

Question
Week 3 Discussion: Solution Chemistry
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Required Resources
Read/review the following resources for this activity:
• Textbook: Chapter 5, 6, 11
• Unit 3 lesson
Initial Post Instructions
For your initial post pick a combination of one of the following molecules, one mass quantity, and one total solution volume from this table. You may not use the same combination as another student so be sure to read any existing peers postings before posting your own.
Molecule Mass Volume
NaCl 2 g 150 ml
CaBr2 6 g 3 L
Li3N 1 g 500 ml
CaO 7 g 14 L
For example, one possible combination would be 2 grams of NaCl in 500 ml of solution. Then, give each of the following for your unique combination being sure to show all of your work:
1. %mass/volume concentration
2. Molarity
3. Osmolarity
Make sure to post at least three high quality posts.
Follow-Up Post Instructions
Respond to at least two peers or one peer and the instructor. Further the dialogue by providing more information and clarification.
Follow-up topics:
• If a peer made a mistake in the initial post reply to your peer and walk us through how to correct the mistake, showing all work.
• Reply to one of peers initial posts and use the dilution equation to prepare a more dilute solution. You may choose the final dilution that you are aiming for, just be sure that your chosen concentration is less than the initial concentration in your peers posting. Show all work and walk us through each step of how you would prepare this solution from your peer’s solution in a lab setting.
• Find an example of an important chemical reaction used in industry or clinical setting and do each the following. Note, you cannot choose the same reaction as a peer.
o Explain the significance of the reaction you chose. This will require research so be sure to cite all sources used in APA format.
o State the reaction without the use of any coefficients so that a peer can balance the chemical reaction your discussed
• Balance a peers chemical equation by following the steps below:
o Determine the number of atoms for each compounds in the reactants.
o Determine the number of atoms for each compounds in the products.
o Balance the chemical reaction, showing all work.
Writing Requirements
• Minimum of 3 posts (1 initial & 2 follow-up)
• Minimum of 2 sources cited (assigned readings/online lessons and an outside source)
• APA format for in-text citations and list of references
Grading
This activity will be graded using the Discussion Grading Rubric. Please review the following link:

Responses to Chemical Equations

Discussion
Criteria Outstanding or higher level of performance Very good or high level of performance Competent or satisfactory level of performance Poor or failing or unsatisfactory level of performance
Initial Post Content Addresses all aspects of the initial discussion question(s), applying experiences, knowledge, and understanding regarding all weekly concepts. Addresses most aspects of the initial discussion question(s), applying experiences, knowledge, and understanding of most of the weekly concepts Addresses some aspects of the initial discussion question(s), applying experiences, knowledge, and understanding of some of the weekly concepts.
Minimally addresses the initial discussion question(s) or does not address the initial question(s).

Initial Post
Evidence & Sources Integrates evidence to support discussion from assigned readings** OR online lessons, AND at least one outside scholarly source.*** Sources are credited.* Integrates evidence to support discussion from assigned readings** OR online lessons. Sources are credited.* Integrates evidence to support discussion only from an outside source with no mention of assigned reading** or lesson. Sources are credited.* Does not integrate any evidence.

Follow-Up Post 1 Response furthers the dialogue by providing more information and clarification, thereby adding much depth to the discussion. Response furthers the dialogue by adding some depth to the discussion. Response does not further the dialogue significantly; adds little depth to the discussion. Does not respond to another student or instructor.

Follow-Up Post 2 Response furthers the dialogue by providing more information and clarification, thereby adding much depth to the discussion. Response furthers the dialogue by adding some depth to the discussion. Response does not further the dialogue significantly; adds little depth to the discussion. Does not respond to another student or instructor.

Professional Communication Presents information using clear and concise language in an organized manner (minimal errors in English grammar, spelling, syntax, and punctuation). Presents information in an organized manner (few errors in English grammar, spelling, syntax, and punctuation). Presents information using understandable language but is somewhat disorganized (some errors in English grammar, spelling, syntax, and punctuation). Presents information that is not clear, logical, professional or organized to the point that the reader has difficulty understanding the message (numerous errors in English grammar, spelling, syntax, and/or punctuation).

Timeliness of Responses Student posts an answer to the initial discussion question(s) by Wednesday, 11:59 p.m. M.T. Student does not post an answer to the initial discussion question(s) by Wednesday, 11:59 p.m. M.T.
Frequency of Responses Posts in the discussion on two different days. Posts fewer than two different days OR does not participate at all.
Responses to Chemical Equations

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