Homework Answers
For Balmer series, n1 = 2, n2 = 3,4,5,----- up to
For the emission of light energy, the molecule should have high energy, i.e. the molecule should be at a high energy level. Hence, it is necessary to excite a molecule or atom before it will emit light
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Why is it necessary to excite a molecule or atom before it
will emit light?
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Reduction of Ketone During this experiment we had to reduce 9-fluorenone to 9-fluorenol. We took pure...
Reduction of Ketone
During this experiment we had to reduce 9-fluorenone to
9-fluorenol. We took pure fluorenone and fluorenol and mixed with
acetone then spotted them on lanes one and two on our TLC plate. We
then took 9-fluorenone and and mixed with methanol, and began
mixing. We then spotted the methanol fluorenone mixture on our TLC
plates in different time intervals, lane three 0 seconds, lane four
30 seconds, lane five 60 seconds, lane six 120 seconds, lane seven...
Beer’s Law Objective : We will explore an application of absorption spectroscopy using calibration curves and...
Beer’s Law Objective : We will explore an application of absorption spectroscopy using calibration curves and Beer’s Law. Use the “LAB : HOW TO…” link from the class website if you need help with how to use balance, Bunsen burner… and such. Introduction: You may write this information in your lab notebook for your own reference. It can’t be cut and pasted. Different solutions have different spectral properties. In this portion of the experiment those properties will be utilized to...
Place your answers on the templates provided. Show your work. Directions: 1. A doctor knows that muscle mass decreases with age. To help him understand this relationship in women, the doct...
Place your answers on the templates provided. Show your work. Directions: 1. A doctor knows that muscle mass decreases with age. To help him understand this relationship in women, the doctor selected women beginning with age 40 and ending with age 80. The data is given in the table below. x is age, y is a measure of muscle mass (the higher the measure, the more muscle mass). Use your calculator to make a scatter plot that shows how age...
Please help with number 3 , thank you! We were unable to transcribe this imageOrganic SUUW HUTUMU UU Mye Uhi...
Please help with number 3 , thank you!
We were unable to transcribe this imageOrganic SUUW HUTUMU UU Mye Uhiny wount of 4-bromoacetanilide, which can be confirmed by TLC). Evaporate DCM using vacuum evaporator. Scrape the solid product out of the vacuum flask onto a square filter paper, completely dry it, and determine the weight, percent yield and melting point Dissolve about 20 mg of this product and dissolve it in CDC13 to run 'H NMR with the help of...
Generalized Anxiety Disorder Middle-Aged White Male With Anxiety BACKGROUND INFORMATION The client is a 46-year-old white...
Generalized Anxiety Disorder
Middle-Aged White Male With Anxiety
BACKGROUND INFORMATION
The client is a 46-year-old white male who works as a welder at
a local steel fabrication factory. He presents today after being
referred by his PCP after a trip to the emergency room in which he
felt he was having a heart attack. He stated that he felt chest
tightness, shortness of breath, and feeling of impending doom. He
does have some mild hypertension (which is treated with low...
Practice Problem 12.122 You have two solutions, one 1.50 M sodium sulfide and the other 1.00...
Practice Problem 12.122 You have two solutions, one 1.50 M sodium sulfide and the other 1.00 M Pb(NO3)2- We were unable to transcribe this imagePart C How many milliliters of the sodium sulfide solution must be used to prepare 11.20 g of precipitate? Express your answer with the appropriate units. A Value V Nags Units Submit Request Answer Part D 1 suli Suppose you filter off the precipitate and find that your percent yield is 50.0 %. What volume of...
Biochem help molecule c molecule d QUESTION 6 Absorption of drugs into the body is based...
Biochem help
molecule c molecule d QUESTION 6 Absorption of drugs into the body is based on multiple factors including ionization state, surface area of the stomach and intestines, and other physical properties of the drug. A novel drug contains a carboxylic acid functional group with a pKa value of 3.24.. Based on ionization states alone, would you predict that it is better absorbed (ie passes through a lipid membrane) in the stomach where the pH is about 2, or...
The Finite Square Wel A more realistic version of the infinite square well potential has a...
The Finite Square Wel A more realistic version of the infinite square well potential has a finite well depth: -a V(x)--V for -a<x <a for x <-a,'r > a =0 This assignment will consider the bound states of a particle (of mass m) in this potential (i.e. total energy E <0). (1) Determine the general solutions to the time-independent Schrödinger equation for the three regions x <-a, -a<x <a, and > a. Write these solutions in terms of k and...
On Monday, we modeled an electric eel and its prey as a circuit with parallel resistors in order to address the question: "Why doesn't the electric eel shock itself?" a. Draw a s...
On Monday, we modeled an electric eel and its prey as a circuit with parallel resistors in order to address the question: "Why doesn't the electric eel shock itself?" a. Draw a sketch of the circuit diagram we analyzed for this system, using circuit symbols for battery and resistors. Then, label each component based on what part of the biological system it corresponds to (i.e. eel battery, eel resistance, fish resistance, etc.) b. Based on your calculations and your measurements...
PROCEDURE Table 4.1: Dilutions of Albumin for Standard Curve Determination. SAMPLE NUMBER VOLUME OF 0.9% NACL...
PROCEDURE Table 4.1: Dilutions of Albumin for Standard Curve Determination. SAMPLE NUMBER VOLUME OF 0.9% NACL (mL) VOLUME OF 10 mg/ml ALBUMIN STOCK SOLUTION (mL) VOLUME OF BIURET REAGENT (mL) TOTAL VOLUME IN EACH TUBE ABSORBANCE READING ALBUMIN CONCENTRATION IN SOLUTION 1 (Blank) 1.0 mL OmL 4.0 mL 0.8 mL 0.2 mL 4.0 mL .4 0.6 mL 0.4 mL 4.0 mL 5 mL 5ml sme 5mL 5ml 5mL .228 .088 1 0.271 773 1.444 11827 0.4 mL 0.6 mL 4.0...
Reduction of Ketone
During this experiment we had to reduce 9-fluorenone to
9-fluorenol. We took pure fluorenone and fluorenol and mixed with
acetone then spotted them on lanes one and two on our TLC plate. We
then took 9-fluorenone and and mixed with methanol, and began
mixing. We then spotted the methanol fluorenone mixture on our TLC
plates in different time intervals, lane three 0 seconds, lane four
30 seconds, lane five 60 seconds, lane six 120 seconds, lane seven...
Place your answers on the templates provided. Show your work. Directions: 1. A doctor knows that muscle mass decreases with age. To help him understand this relationship in women, the doctor selected women beginning with age 40 and ending with age 80. The data is given in the table below. x is age, y is a measure of muscle mass (the higher the measure, the more muscle mass). Use your calculator to make a scatter plot that shows how age...
Please help with number 3 , thank you!
We were unable to transcribe this imageOrganic SUUW HUTUMU UU Mye Uhiny wount of 4-bromoacetanilide, which can be confirmed by TLC). Evaporate DCM using vacuum evaporator. Scrape the solid product out of the vacuum flask onto a square filter paper, completely dry it, and determine the weight, percent yield and melting point Dissolve about 20 mg of this product and dissolve it in CDC13 to run 'H NMR with the help of...
Generalized Anxiety Disorder
Middle-Aged White Male With Anxiety
BACKGROUND INFORMATION
The client is a 46-year-old white male who works as a welder at
a local steel fabrication factory. He presents today after being
referred by his PCP after a trip to the emergency room in which he
felt he was having a heart attack. He stated that he felt chest
tightness, shortness of breath, and feeling of impending doom. He
does have some mild hypertension (which is treated with low...
Practice Problem 12.122 You have two solutions, one 1.50 M sodium sulfide and the other 1.00 M Pb(NO3)2- We were unable to transcribe this imagePart C How many milliliters of the sodium sulfide solution must be used to prepare 11.20 g of precipitate? Express your answer with the appropriate units. A Value V Nags Units Submit Request Answer Part D 1 suli Suppose you filter off the precipitate and find that your percent yield is 50.0 %. What volume of...
Biochem help
molecule c molecule d QUESTION 6 Absorption of drugs into the body is based on multiple factors including ionization state, surface area of the stomach and intestines, and other physical properties of the drug. A novel drug contains a carboxylic acid functional group with a pKa value of 3.24.. Based on ionization states alone, would you predict that it is better absorbed (ie passes through a lipid membrane) in the stomach where the pH is about 2, or...
The Finite Square Wel A more realistic version of the infinite square well potential has a finite well depth: -a V(x)--V for -a<x <a for x <-a,'r > a =0 This assignment will consider the bound states of a particle (of mass m) in this potential (i.e. total energy E <0). (1) Determine the general solutions to the time-independent Schrödinger equation for the three regions x <-a, -a<x <a, and > a. Write these solutions in terms of k and...
On Monday, we modeled an electric eel and its prey as a circuit with parallel resistors in order to address the question: "Why doesn't the electric eel shock itself?" a. Draw a sketch of the circuit diagram we analyzed for this system, using circuit symbols for battery and resistors. Then, label each component based on what part of the biological system it corresponds to (i.e. eel battery, eel resistance, fish resistance, etc.) b. Based on your calculations and your measurements...
PROCEDURE Table 4.1: Dilutions of Albumin for Standard Curve Determination. SAMPLE NUMBER VOLUME OF 0.9% NACL (mL) VOLUME OF 10 mg/ml ALBUMIN STOCK SOLUTION (mL) VOLUME OF BIURET REAGENT (mL) TOTAL VOLUME IN EACH TUBE ABSORBANCE READING ALBUMIN CONCENTRATION IN SOLUTION 1 (Blank) 1.0 mL OmL 4.0 mL 0.8 mL 0.2 mL 4.0 mL .4 0.6 mL 0.4 mL 4.0 mL 5 mL 5ml sme 5mL 5ml 5mL .228 .088 1 0.271 773 1.444 11827 0.4 mL 0.6 mL 4.0...
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