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. Why is Rf a ratio of distances rather than just simply distance traveled? You may...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
Why has Congress moved toward credits rather than deductions in recent years? What do you know...
Why has Congress moved toward credits rather than deductions in recent years? What do you know about tax provisions that might encourage small business? How C Corporation may be different from S Corporation? Are there other types of corporations? How they are treated? What is Qualified Business Income? How to determine taxpayer deductions for qualified business income/
1-4 1. What would happen if you used a water-soluble pen on the chromatography paper to...
1-4
1. What would happen if you used a water-soluble pen on the chromatography paper to mark your origin line? How would this affect the Re values? 2. A student accidently adds 17 ml of NaCl to their beaker rather than the 7 mL of NaCl they were suppose to add to their beaker. How might this mistake affect their chromatogram? Do you think they would be able to obtain any data? Briefly explain your answer. 10 3. Is it...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography?...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...
1 and 2 please 1. Explain why you would conduct a t test rather than a...
1 and 2 please
1. Explain why you would conduct a t test rather than a z test. In other words, what is the difference between a one sample t test and a one sample z test? 2. Because of what is discussed in question 1, some of the components of calculating at value are different from the components of a z value. Specifically, the t value utilizes degrees of freedom. Explain what degrees of freedom means (you can include...
2. Why is it safer to use NaOCI as the oxidant, rather than Cro. / pyridine?...
2. Why is it safer to use NaOCI as the oxidant, rather than Cro. / pyridine? 3. Sodium hypochlorite is prepared by reacting Cl, through aqueous (excess) NaOH. Write a balanced equation for this; HINT: push electrons. 4. Looking a the reaction scheme in the background section of this lab, what mechanism(s) are involved in this reaction. Name them and indicate which reaction steps follow these mechanistic patterns. 130 3. Theoretical question: Suppose you had a 20/80 mixture of part...
Chromatography: Separating Mixtures Introduction: Magic marker inks are often mixtures of several compounds. Paper chromatography is...
Chromatography: Separating Mixtures Introduction: Magic marker inks are often mixtures of several compounds. Paper chromatography is a common method of separating various components of a mixture. After separation, you can observe the different colors that make up a particular color of magic marker ink. You can also calculate a ratio Rf, which compares how far each compound traveled to how far each solvent (substance that dissolves another substance) traveled during the experiment. Rf = Ds/Df Ds = Distance traveled by...
Graph the curve and find its length. (Do this on paper. Your instructor may ask you...
Graph the curve and find its length. (Do this on paper. Your instructor may ask you to turn in this work.) x = ecos(t) y = etsin(t) Osts 5 Need Help? Read It Watch It Talk to a Tutor 6. [-12 Points] DETAILS SESSCALCET1 9.2.047. MY NC Consider the curve below. x = 2(sin(t))2 y = 2(cos(t)) osts 37 (a) Find the distance traveled by a particle with position (x, y) as t varies in the given time interval. (b)...
a.List five reasons why the government may want to intervene in markets and provide an example of each. b. Consider the...
a.List five reasons why the government may want to intervene in markets and provide an example of each. b. Consider the market for night-time events at Bellerive Oval. To host night-time events the oval must have its large light towers switched on which shine brightly into neighbouring houses disrupting their sleep and night-time recreation What is the externality in this situation and why is it a market failure? Draw a diagram for night-time events at Bellerive Oval. Clearly identify: the...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
1-4
1. What would happen if you used a water-soluble pen on the chromatography paper to mark your origin line? How would this affect the Re values? 2. A student accidently adds 17 ml of NaCl to their beaker rather than the 7 mL of NaCl they were suppose to add to their beaker. How might this mistake affect their chromatogram? Do you think they would be able to obtain any data? Briefly explain your answer. 10 3. Is it...
2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...
1 and 2 please
1. Explain why you would conduct a t test rather than a z test. In other words, what is the difference between a one sample t test and a one sample z test? 2. Because of what is discussed in question 1, some of the components of calculating at value are different from the components of a z value. Specifically, the t value utilizes degrees of freedom. Explain what degrees of freedom means (you can include...
2. Why is it safer to use NaOCI as the oxidant, rather than Cro. / pyridine? 3. Sodium hypochlorite is prepared by reacting Cl, through aqueous (excess) NaOH. Write a balanced equation for this; HINT: push electrons. 4. Looking a the reaction scheme in the background section of this lab, what mechanism(s) are involved in this reaction. Name them and indicate which reaction steps follow these mechanistic patterns. 130 3. Theoretical question: Suppose you had a 20/80 mixture of part...
Graph the curve and find its length. (Do this on paper. Your instructor may ask you to turn in this work.) x = ecos(t) y = etsin(t) Osts 5 Need Help? Read It Watch It Talk to a Tutor 6. [-12 Points] DETAILS SESSCALCET1 9.2.047. MY NC Consider the curve below. x = 2(sin(t))2 y = 2(cos(t)) osts 37 (a) Find the distance traveled by a particle with position (x, y) as t varies in the given time interval. (b)...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
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