Homework Answers
All the given statements are true and applicable for the ratio to the front (Rf) of an analyte.
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The ratio to the front (R value for an analyte (select all that apply) 1. depends...
1. The voltage difference between the plates depends on (select all that apply) a. the area...
1. The voltage difference between the plates depends on (select all that apply) a. the area of the plates b. the distance between the plates c. the charge on the plates d. the conductivity of the plates e.the sensitivity of the plates 2. The capacitance of a parallel plate capacitor depends on (select all that apply) a. the voltage difference between the plates b. the electric field between the plates c. the distance between the plates d. the charge on...
LOS SCULUI EXPERIMENT # 6 PAPER CHROMATOGRAPHY LABORATORY REPORT DATA AND CALCULATIONS Measure the retention factors...
LOS SCULUI EXPERIMENT # 6 PAPER CHROMATOGRAPHY LABORATORY REPORT DATA AND CALCULATIONS Measure the retention factors (R) for each of the components and report the values in the data table. Student Name Course Section Date Instructor PRE-LAB ASSIGNMENT son Rd? Hetardation factor Re Value) is the distance a given component (analute) divided by the distance the Re values o f mobile phase There is no shry unit for i migration distance of substance Imigrahon 1. What are the units on...
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...
1) Select all that apply. Globular proteins: a)are found in hair and wool. b)include myoglobin and...
1) Select all that apply. Globular proteins: a)are found in hair and wool. b)include myoglobin and collagen. c)are usually water soluble. d)aggregate in aqueous media. e)are often made of β-pleated sheet and α-helix sections wrapped into compact structures. 2) Select all that apply. The Bohr effect: a)depends on the atomic orbital structure of hydrogen. b)can be summarized as a reduction in the oxygen affinity of hemoglobin with decreasing pH. c)is explained by the protonation of key amino acids, including the...
15. The graph of which trigonometric function(s) include the point (0,2)? Select all that apply. (3...
15. The graph of which trigonometric function(s) include the point (0,2)? Select all that apply. (3 points) y = cos x + 1 y = 2 cos x y = sin x + 1 y = tan x + 1 f(x) = sin(x+y)+1 16. The data in the table represents the average number of daylight hours each month in Springfield in 2015, rounded to the nearest quarter-hour. (4 points) Month Hours January 9.5 February 10.5 March 12 April 13.25 May...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation of the protein is necessary so that proteins run proportionally to their size, based on the interaction of SDS with the unfolded protein. Heat is used to hydrolyze the peptide bonds of the protein. The heat step allows the proteins to unfold, enabling the protein chain to be coated with SDS molecules. Heat is used to hydrolyze disulfide bonds. QUESTION 2 1.5 points Saved...
SELECT ALL THAT APPLY Breach of the drugs listed below, check all the statements that are...
SELECT ALL THAT APPLY Breach of the drugs listed below, check all the statements that are true. 19. Selective serotonin reuptake inhibitors (SSRIs) 14. Benzodiazepines Used primarily for pregnant women Sedating-hypnotic drug that depresses the central nervous system High risk of dependency Enhance dopamine effects, leading to reduction in anxiety Increase concentration of serotonin avail- able to bind to dopamine receptors Sexual side effects are common in both men and women. Increased risk of suicide Adverse effects include low sodium...
Please answer all the mcqs Question 1 (1 point) Select from the following list the design...
Please answer all the mcqs
Question 1 (1 point) Select from the following list the design parameter that apply to two gears in mesh. Pitch Pressure Angle Base Circle N1 N2 addendum Question 2 (1 point) A gear ratio of 110:1 might require how many stages of spur or helical gears? 07 03 5 12 Question 3 (1 point) Question 3 (1 point) A reverted gear train is one in which the gears do not mesh. c) the input and...
8. In which one of the following cellular processes is DNA involved? (Select all that apply.)...
8. In which one of the following cellular processes is DNA involved? (Select all that apply.) DNA replication transcription translation transcription and translation 10. Dogs have lots of fur that they need to keep warm during winter months. However, this makes them prone to overheating during summer months. Luckily, dogs are commonly observed "panting," which is a method used by dogs to exchange hot air for cool air thereby decreasing their temperature. What qualification life would BEST explain this? reproduction...
please do two pargraph about this pre lab and lab include Title,purpose ,chemical eqution if their...
please do two pargraph about this pre lab and lab include
Title,purpose ,chemical eqution if their any ،Procedure
,Hazards(hazard Identification,physical and chemical
properties),Experimental Phase, Data
&Observations,Data&Observations cont (melting point and
meling point). and Calcuations
Spinach Laboratory Procedure PROCEDURES Isolation of pigment from leaves: 1. Wash the spinach leaves. Weigh 1.0 g-2.0 g of dry spinach leaves. Remove any stems and veins from the leaves before you weigh. 2. Combine 1.0 g of anhydrous magnesium sulfate with 0.5 g of sand...
LOS SCULUI EXPERIMENT # 6 PAPER CHROMATOGRAPHY LABORATORY REPORT DATA AND CALCULATIONS Measure the retention factors (R) for each of the components and report the values in the data table. Student Name Course Section Date Instructor PRE-LAB ASSIGNMENT son Rd? Hetardation factor Re Value) is the distance a given component (analute) divided by the distance the Re values o f mobile phase There is no shry unit for i migration distance of substance Imigrahon 1. What are the units on...
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...
15. The graph of which trigonometric function(s) include the point (0,2)? Select all that apply. (3 points) y = cos x + 1 y = 2 cos x y = sin x + 1 y = tan x + 1 f(x) = sin(x+y)+1 16. The data in the table represents the average number of daylight hours each month in Springfield in 2015, rounded to the nearest quarter-hour. (4 points) Month Hours January 9.5 February 10.5 March 12 April 13.25 May...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation of the protein is necessary so that proteins run proportionally to their size, based on the interaction of SDS with the unfolded protein. Heat is used to hydrolyze the peptide bonds of the protein. The heat step allows the proteins to unfold, enabling the protein chain to be coated with SDS molecules. Heat is used to hydrolyze disulfide bonds. QUESTION 2 1.5 points Saved...
SELECT ALL THAT APPLY Breach of the drugs listed below, check all the statements that are true. 19. Selective serotonin reuptake inhibitors (SSRIs) 14. Benzodiazepines Used primarily for pregnant women Sedating-hypnotic drug that depresses the central nervous system High risk of dependency Enhance dopamine effects, leading to reduction in anxiety Increase concentration of serotonin avail- able to bind to dopamine receptors Sexual side effects are common in both men and women. Increased risk of suicide Adverse effects include low sodium...
Please answer all the mcqs
Question 1 (1 point) Select from the following list the design parameter that apply to two gears in mesh. Pitch Pressure Angle Base Circle N1 N2 addendum Question 2 (1 point) A gear ratio of 110:1 might require how many stages of spur or helical gears? 07 03 5 12 Question 3 (1 point) Question 3 (1 point) A reverted gear train is one in which the gears do not mesh. c) the input and...
8. In which one of the following cellular processes is DNA involved? (Select all that apply.) DNA replication transcription translation transcription and translation 10. Dogs have lots of fur that they need to keep warm during winter months. However, this makes them prone to overheating during summer months. Luckily, dogs are commonly observed "panting," which is a method used by dogs to exchange hot air for cool air thereby decreasing their temperature. What qualification life would BEST explain this? reproduction...
please do two pargraph about this pre lab and lab include
Title,purpose ,chemical eqution if their any ،Procedure
,Hazards(hazard Identification,physical and chemical
properties),Experimental Phase, Data
&Observations,Data&Observations cont (melting point and
meling point). and Calcuations
Spinach Laboratory Procedure PROCEDURES Isolation of pigment from leaves: 1. Wash the spinach leaves. Weigh 1.0 g-2.0 g of dry spinach leaves. Remove any stems and veins from the leaves before you weigh. 2. Combine 1.0 g of anhydrous magnesium sulfate with 0.5 g of sand...
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