i need help with writing my lab report , i need it done by 8 pm today , In this experiment we trying to figure out the R and how the gas volume going to change by changing the reactants mass and volume , to do so we have to generate several known quantities of carbon dioxide by reacting dilute acetic acid acetic acid solution with sodium hydrogen carbonate then measure the volume of the gas . To find out R volume we going to react different mass of NaHCO3(s) with different volume of CH3COOH(aq) and find out the volume of gas produce by using graduated cylinder full of water , then find the fit line equation for the 4 samples . NaHCO3(s) + CH3COOH(aq) NaCH3COO(aq) + H2O(l) + CO2(g) Then find out R by the following equation : Slope=RT/P i need formal lab report include everything

i need help with writing my lab report , i need it done by 8 pm today , In this experiment we trying to figure out the R and how the gas volume going to change by changing the reactants mass and volume , to do so we have to generate several known quantities of carbon dioxide by reacting dilute acetic acid acetic acid solution with sodium hydrogen carbonate then measure the volume of the gas . To find out R volume we going to react different mass of NaHCO3(s) with different volume of CH3COOH(aq) and find out the volume of gas produce by using graduated cylinder full of water , then find the fit line equation for the 4 samples . NaHCO3(s) + CH3COOH(aq) NaCH3COO(aq) + H2O(l) + CO2(g) Then find out R by the following equation : Slope=RT/P i need formal lab report include everything

User_9210 added on 04/18/16 at 05:41 PM (PST):


Formal Report: Avogadros Law
Typed formal report: 30 points
1. TITLE: 2 points
Name, Partners name, title and date of experiment, lab section should be included. Deduct 0.5 pt for each missing.
2. INTRODUCTION: 5 points
State the problem: What is the problem this experiment and/or study try to solve? (1 pts) A short paragraph or a few sentences leading to the background information.
Background: define important terms and how they are used to solve the problem proposed (3 pts)
Assume you were in an age when Avogadros Law was just proposed. Discuss the importance of Avogadros Law and how to use it and other gas laws (Boyles Law and Charles Law) to derive Ideal Gas Law. Students may also use other relevant concepts.
Ends with a statement of purpose: what does the student want to achieve through this experiment and how to achieve it? (1 pts)
A short paragraph of purposes. Students should provide some insights, not in great details though, the methodology used to achieve these purposes.
3. EXPERIMENTAL
Students should summarize narratively their revised procedure here. No bullet point or numbered steps. No point value is assigned. But deduct 3 pts if this section is missing and deduct 1 point if this section is not written in appropriate format.
4. DATA & CALCULATIONS: 6 points
Proper data table(s) to summarize all data and calculated result (4 pts)
Proper data table should be included for all data and their calculated result. All table(s) should be labeled with proper table number and title. Be aware that students may use a different table and may include different amount of data in their table. However, all the major data and calculated result should be included in the table.
Introduction to data table(s) (2 pts)
All data tables should be introduced and major data should be described in words how they were achieved. Equations may be used in this section to aid this purpose.
5. RESULTS & DISCUSSION: 10 points
THIS IS THE MEAT (OR BREAD AND BUTTER ) OF THE FORMAL REPORT!
Result statements: 4 pts
Student should briefly summarize their results on both (1) Verification of Avogadros Law; and (2) Calculated gas constant R, including the percent error of R. 2 point for each part.
Error analysis: 6 pts
Students should briefly assess the results, especially how linear the excel graph is and how high (or low) the % error of R is. Then students should identify at least three reasons or sources of errors to account for the difference between their result to literature value of R. These errors may focus on different part of the lab or all of them. Students should also discuss how these errors may have affected the experimental R value and how they might have been avoided or minimized. 2 pts for each reasonable error and corresponding discussion.
6. CONCLUSION: 4 points
Restatement of purpose, summarize calculated results, significance of experiment. 1 to 2 short paragraphs are expected.
7. REFERENCES: 1 points
Student should include the lab manual and textbook from which they get definitions of major concepts. Sources of the literature values for Gas Constant R and vapor pressure of water should be included as well. Students may have other references if they used other resources to help them propose procedure or help them interpret data and write formal report.
8. OVERALL STYLE OF FORMAL REPORT: 2 points
3rd person, past tense, formatting, complete sentences, b


User_9210 added on 04/18/16 at 05:43 PM (PST):

Sample #1 Sample #2 Sample #3 Sample #4
Mass NaHCO3 g .50 .10 .20 .30
Mole of NaHCO3( mole) .00595 .00119 .00238 .00357
Volume of CH3COOH (ml) 17 5 7 11
Moles of CH3COOH (mole) .0085 .0025 .0035 .0055
What is your limiting reaction ? NaHCO3 NaHCO3 NaHCO3 NaHCO3
Moles of limiting reaction .00595 .00119 .06238 .00357
Theoretical yield of CO2 (mol) .00595 .00119 .06238 .00357
Volume of CO2 collected (ml) 135 26.5 52.0 75.0


User_9210 added on 04/18/16 at 05:43 PM (PST):

i attached all data in the picture

User_9210 added on 04/18/16 at 05:46 PM (PST):

Fill 100 ml graduated cylinder with water in a large trough that is almost full of DI water , Then clamp the cylinder open end down in the trough and get the gas out of the cylinder , connect the delivery tube to the can and place the free end of the delivery tube into mouth of the tube of the graduated cylinder, weight the mass of NaHCO3(s) and add specific value of CH3COOH(aq) , allow the reaction to occurs .

Adjust the vertical position of the graduated cylinder so there no different between the height of the water column in graduated cylinder and the liquid level in the trough .

Determine the value of CO2(g) in the graduated , then dry it and repeat the procedure three times .
The reaction equation will be as following: