Stoichiometry And A Precipitation Reaction

Stoichiometry And A Precipitation Reaction

Review the following reaction, where sodium carbonate and calcium chloride dihydrate react in an aqueous solution to create calcium carbonate (solid precipitate formed in the reaction), a salt (sodium chloride), and water.

Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq) Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq)

Put on your safety gloves and goggles.

Use the graduated cylinder to measure 25 ml of distilled water. Add 25 ml of distilled water to each of the two 100 ml glass beakers.

Turn on the digital scale, place the plastic weigh boat on the scale and tare the scale so that it reads 0.00 g. See Figure 3.

Use the metal spatula to measure 1.50 grams of the CaCl2•2H2O.

Carefully add the CaCl2•2H2O to one of the beakers containing 25 mL of distilled water. Submerge the weigh boat into the beaker to transfer all of the CaCl2•2H2O if any residue remains on the weigh boat. Swirl the beaker until the CaCl2•2H2O is fully dissolved into the water.

Rinse the weigh boat and metal spatula with distilled water and fully dry both with paper towels.

Use the information and examples provided in the Exploration to calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how many moles of pure CaCl2 are present in the 1.50 g of CaCl2•2H2O. Record the answers in Data Table 1.

Use the information and examples provided in the Exploration and the values recorded in Data Table 1 from Step 8 to determine how many moles of Na2CO3 are necessary to reach stoichiometric quantities. From that calculation, determine how many grams of Na2CO3 are necessary to reach stoichiometric quantities. Record both values in Data Table 1.

Turn on the digital scale, place the plastic weigh boat on the scale and tare the scale so that it reads 0.00 g.

Use the metal spatula to measure the calculated amount of Na2CO3, and carefully add it to the 25 mL of distilled water in the second 100 mL glass beaker. Submerge the weigh boat into the beaker to transfer all of the Na2CO3 if any residue remains on the weigh boat.

Use the stir rod to stir the Na2CO3 and break apart any clumps until it is fully dissolved into the water.

Pour the Na2CO3 solution from the 100 mL glass beaker into the beaker containing the CaCl2•2H2O solution. Rinse the beaker containing Na2CO3 with 2-3 mL of distilled water and transfer the rinse to the beaker containing the CaCl2•2H2O. Swirl the beaker to fully mix the two solutions and the precipitate of calcium carbonate will form instantly.

Use the information and examples provided in the Exploration to determine the maximum (theoretical) amount of CaCO3, in grams, that can be produced from the precipitation reaction. Record this value in Data Table 1.

Wash the now empty 100 mL glass beaker (that contained the Na2CO3 solution) with soap and water. Rinse the beaker with distilled water and thoroughly dry with paper towel.

Fold the round filter paper into a cone shape, as shown in Figure 3.

Place the folded filter paper onto the tared scale and record the mass of the filter paper in Data Table 1.

Place the folded filter paper into the funnel and dampen it with a small amount of distilled water. Swirl the contents of the beaker to dislodge any precipitate from the sides and while holding the filter paper open, slowly pour the contents of the beaker into the filter-paper lined funnel.

Note: Be careful not to overfill the funnel. It may be necessary to gently swirl the funnel to keep the precipitate from clogging the paper, but be careful not to touch the filter paper so that it does not tear.

Add 2-3 mL of distilled water to the beaker and swirl the water around the sides of the beaker to collect any precipitate stuck to the sides of the beaker. Pour into the filter-paper lined funnel.

Allow all of the liquid to drain from the funnel into the beaker. This may take 10-15 minutes.

Note: Lift the funnel periodically during this time to facilitate the water draining into the beaker. Again, do not touch the filter paper so that it does not tear.

After all liquid has drained from the funnel, carefully remove the filter paper from the funnel and place it on paper towels in a warm location, such as a window that receives a lot of sunlight, where it will not be disturbed. See Figure 4.

Allow the filter paper to completely dry, which will require an overnight drying period.

Note: Ensure the filter paper is placed in a location that does not have flowing air, such as a fan or air vent.

When the filter paper with precipitate is completely dry, tare the scale and place the paper onto the scale to obtain the mass. Record the mass of the filter paper and precipitate in Data Table 1.

Calculate the actual mass of the precipitate and record in Data Table 1.

Calculate the percent yield of the precipitate and record in Data Table 1.

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Develop a detailed action plan for finding an internship opportunity in finance area.

Develop a detailed action plan for finding an internship opportunity in finance area.

Discussion 1, answer following questions(at least 300 words in total)

1.What are the main publications, journals, and newsletters in your area(finance area) of interest?

2.What are some of the trends, issues, and topics mentioned in these publications?

3.What other trends are you noticing? What are possible trends that may result based on the economy, popular culture, or other factors?

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What are some of the trends, issues, and topics mentioned in these publications?

What are some of the trends, issues, and topics mentioned in these publications?

Discussion 1, answer following questions(at least 300 words in total)

1.What are the main publications, journals, and newsletters in your area(finance area) of interest?

2.What are some of the trends, issues, and topics mentioned in these publications?

3.What other trends are you noticing? What are possible trends that may result based on the economy, popular culture, or other factors?

Discussion 2, answer following questions(at least 300 words in total)

Create a detailed action plan for finding an internship opportunity in finance area. Include several steps and a timeline to complete each step. Ideas for your plan may include: Types of opportunities you intend to explore. Where you will start your search? What resources you will use? Whom you might talk to in order to get ideas and support? How you will initiate contact with the organizition? A timeline to accomplish these goals.

Discussion 3, write your comments and your feelings for the text in the attachment file(100 words for each text)

attachment
comments.docx

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Discussion 1, answer following questions(at least 300 words in total)

 Discussion 1, answer following questions(at least 300 words in total) 

1.What are the main publications, journals, and newsletters in your area(finance area) of interest?

2.What are some of the trends, issues, and topics mentioned in these publications?

3.What other trends are you noticing? What are possible trends that may result based on the economy, popular culture, or other factors?

Discussion 2, answer following questions(at least 300 words in total)

Create a detailed action plan for finding an internship opportunity in finance area. Include several steps and a timeline to complete each step. Ideas for your plan may include: Types of opportunities you intend to explore. Where you will start your search? What resources you will use? Whom you might talk to in order to get ideas and support? How you will initiate contact with the organizition? A timeline to accomplish these goals.

Discussion 3, write your comments and your feelings for the text in the attachment file(100 words for each text)

attachment
comments.docx

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Discussion Questions Due 6/2

Discussion Questions Due 6/2

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Discussion 1, answer following questions(at least 300 words in total)

1.What are the main publications, journals, and newsletters in your area(finance area) of interest?

2.What are some of the trends, issues, and topics mentioned in these publications?

3.What other trends are you noticing? What are possible trends that may result based on the economy, popular culture, or other factors?

Discussion 2, answer following questions(at least 300 words in total)

Create a detailed action plan for finding an internship opportunity in finance area. Include several steps and a timeline to complete each step. Ideas for your plan may include: Types of opportunities you intend to explore. Where you will start your search? What resources you will use? Whom you might talk to in order to get ideas and support? How you will initiate contact with the organizition? A timeline to accomplish these goals.

Discussion 3, write your comments and your feelings for the text in the attachment file(100 words for each text)

attachment
comments.docx

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Critique the policy for ethical considerations, and explain the policy’s strengths and challenges in promoting ethics.

Critique the policy for ethical considerations, and explain the policy’s strengths and challenges in promoting ethics.

Identify and describe at least two competing needs impacting your selected healthcare issue/stressor.

Describe a relevant policy or practice in your organization that may influence your selected healthcare issue/stressor.

Critique the policy for ethical considerations, and explain the policy’s strengths and challenges in promoting ethics.

Recommend one or more policy or practice changes designed to balance the competing needs of resources, workers, and patients, while addressing any ethical shortcomings of the existing policies. Be specific and provide examples.

Cite evidence that informs the healthcare issue/stressor and/or the policies, and provide two scholarly resources in support of your policy or practice recommendations.

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Describe a relevant policy or practice in your organization that may influence your selected healthcare issue/stressor.

Describe a relevant policy or practice in your organization that may influence your selected healthcare issue/stressor.

Critique the policy for ethical considerations, and explain the policy’s strengths and challenges in promoting ethics.

Recommend one or more policy or practice changes designed to balance the competing needs of resources, workers, and patients, while addressing any ethical shortcomings of the existing policies. Be specific and provide examples.

Cite evidence that informs the healthcare issue/stressor and/or the policies, and provide two scholarly resources in support of your policy or practice recommendations.

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Assignment: Developing Organizational Policies And Practices

Assignment: Developing Organizational Policies And Practices

Identify and describe at least two competing needs impacting your selected healthcare issue/stressor.

Describe a relevant policy or practice in your organization that may influence your selected healthcare issue/stressor.

Critique the policy for ethical considerations, and explain the policy’s strengths and challenges in promoting ethics.

Recommend one or more policy or practice changes designed to balance the competing needs of resources, workers, and patients, while addressing any ethical shortcomings of the existing policies. Be specific and provide examples.

Cite evidence that informs the healthcare issue/stressor and/or the policies, and provide two scholarly resources in support of your policy or practice recommendations.

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Complete an article analysis for each using the “Article Analysis: Part 2” template.

Complete an article analysis for each using the “Article Analysis: Part 2” template.

Article Analysis 2

Search the GCU Library and find two new health care articles that use quantitative research. Do not use articles from a previous assignment, or articles that appear in the Topic Materials or textbook.

Complete an article analysis for each using the “Article Analysis: Part 2” template.

Refer to the “Patient Preference and Satisfaction in Hospital-at-Home and Usual Hospital Care for COPD Exacerbations: Results of a Randomised Controlled Trial,” in conjunction with the “Article Analysis Example 2,” for an example of an article analysis.

While APA style is not required for the body of this assignment, solid academic writing is expected, and documentation of sources should be presented using APA formatting guidelines, which can be found in the APA Style Guide, located in the Student Success Center.

This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to LopesWrite. Refer to the LopesWrite Technical Support articles for assistance.

RUBRIC

Attempt Start Date: 27-May-2019 at 12:00:00 AM

Due Date: 02-Jun-2019 at 11:59:59 PM

Maximum Points: 130.0

Patient Preference and Satisfaction in Hospital-at-Home and Usual Hospital Care for COPD Exacerbations: Results of a Randomised Controlled Trial

Review “Patient Preference and Satisfaction in Hospital-at-Home and Usual Hospital Care for COPD Exacerbations: Results of a Randomised Controlled Trial,” by Utens et al., from International Journal of Nursing Students (2013).

Review this article in conjunction with the “Article Analysis Example 2” document to help prepare for the article analysis assignment due in this topic.

URL:https://www-sciencedirect-com.lopes.idm.oclc.org/science/article/pii/S0020748913000941

Article Analysis 2

No of Criteria: 10 Achievement Levels: 5CriteriaAchievement LevelsDescriptionPercentage1: Unsatisfactory0.00 %2: Less Than Satisfactory65.00 %3: Satisfactory75.00 %4: Good85.00 %5: Excellent100.00 %Content100.0 Two Quantitative Articles10.0Fewer than two articles are presented. None of the articles presented use quantitative research.N/ATwo articles are presented. Of the articles presented, only one articles are based on quantitative researchN/ATwo articles are presented. Both articles are based on quantitative research.Article Citation and Permalink10.0Article citation and permalink are omitted.Article citation and permalink are presented. There are significant errors. Page numbers are not indicated to cite information, or the page numbers are incorrect.Article citation and permalink are presented. Article citation is presented in APA format, but there are errors. Page numbers to cite information are missing, or incorrect, in some areas.Article citation and permalink are presented. Article citation is presented in APA format. Page numbers are used in to cite information. There are minor errors.Article citation and permalink are presented. Article citation is accurately presented in APA format. Page numbers are accurate and used in all areas when citing information.Broad Topic Area/Title10.0Broad topic area and title are omitted.Broad topic area and title are referenced but are incomplete.Broad topic area and title are summarized. There are some minor inaccuracies.Broad topic area and title are presented. There are some minor errors, but the content overall is accurate.Broad topic area and title are fully presented and accurate.Hypothesis10.0Definition of hypothesis is omitted. The definition of the hypothesis is incorrect.Hypothesis is summarized. There are major inaccuracies or omissions.Hypothesis is generally defined. There are some minor inaccuracies.Hypothesis is defined. Hypothesis is generally defined. There are some minor inaccuracies.Hypothesis is accurate and clearly defined.Independent and Dependent Variable Type and Data for Variable10.0Variable types and data for variables are omitted.Variable types and data for variables are presented. There are major inaccuracies or omissions.Variable types and data for variables are presented. There are inaccuracies.Variable types and data for variables are presented. Minor detail is needed for accuracy.Variable types and data for variables are presented and accurate.Population of Interest for the Study10.0Population of interest for the study is omitted.Population of interest for the study is presented. There are major inaccuracies or omissions.Population of interest for the study is presented. There are inaccuracies.Population of interest for the study is presented. Minor detail is needed for accuracy.Population of interest for the study is presented and accurate.Sample10.0Sample is omitted.Sample is presented. There are major inaccuracies or omissions.Sample is presented. There are inaccuracies.Sample is presented. Minor detail is needed for accuracy. Page citation for sample information is provided.Sample is presented and accurate. Page citation for sample information is provided.Sampling Method10.0Sampling method is omitted.Sampling is presented. There are major inaccuracies or omissions.Sampling is presented. There are inaccuracies. Page citation for sample information is omitted.Sampling is presented. Minor detail is needed for accuracy.Sampling method is presented and accurate.How Was Data Collected10.0The means of data collection are omitted.The means of data collection are presented. There are major inaccuracies or omissions.The means of data collection are presented. There are inaccuracies. Page citation for sample information is omitted.The means of data collection are presented. Minor detail is needed for accuracy. Page citation for sample information is provided.The means of data collection are presented and accurate. Page citation for sample information is provided.Mechanics of Writing (includes spelling, punctuation, grammar, and language use)10.0Surface errors are pervasive enough that they impede communication of meaning. Inappropriate word choice or sentence construction is employed.Frequent and repetitive mechanical errors distract the reader. Inconsistencies in language choice (register) or word choice are present. Sentence structure is correct but not varied.Some mechanical errors or typos are present, but they are not overly distracting to the reader. Correct and varied sentence structure and audience-appropriate language are employed.Prose is largely free of mechanical errors, although a few may be present. The writer uses a variety of effective sentence structures and figures of speech.The writer is clearly in command of standard, written, academic English.Total Percentage 100

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