Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

A 5.0 mL aliquot of a stock tryptophan solution was diluted by adding 95 mL of water. The absorbance of that diluted solution was measured at 280 nm as 0.055 absorbance units. What is the concentration of the stock (original) solution? Hint: Make sure to find out the dilution factor. (Molar extinction coefficient = 5579 cm-1 M-1.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M924593

Have any Question? 


Related Questions in Biology

Posted in description areaquestions 1response should be at

Posted in Description Area Questions 1 Response should be at least 200 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citatio ...

Discussionmuch of health assessment planning evaluation and

Discussion Much of health assessment, planning, evaluation, and policy making depend on communication. How can the Shannon-Weaver communications model be applied to these? What noise (interruptions or barriers) could sta ...

Part i textbook questionschapter 38 describe brieflyathe

Part I. Textbook Questions Chapter 3: 8. Describe briefly: a. The genotype of a person who has sickle-cell anemia. b. The genotype of a person with a normal phenotype who has a child with sickle-cell anemia. c. The total ...

Write the null and research hypotheses for the following

Write the null and research hypotheses for the following description of a research study: A group of middle-aged men was asked to complete a questionnaire on their attitudes toward work and family. Each of these men is m ...

Experimental design for biologists reflectioninstructions

Experimental Design for Biologists Reflection Instructions: Read Ch. 22 only pg 137-146 & 152-154, Read Ch. 23 only pg. 155-162. (I suggest you skim the other examples and read them if they seem relevant to your project. ...

Discuss the applications of new andor emerging technologies

Discuss the applications of new and/or emerging technologies relating to human biology and their impact upon individuals, human society and/or the environment. 5 pages in all: 1 st page should have the title of your pape ...

Write my microbiiology research paper this research paper

Write my microbiiology research paper This research paper should be about the microorgansims that caused bacterial vaginosis the signs and symptoms diagnosis and treatment of Bacterail Vaginosis. Thhe information should ...

Assignmentbegin with the information in dna a specific gene

Assignment Begin with the information in DNA, a specific gene. Describe how this genetic information results in the formation of a protein. Define mutation. Explain two specific types. Describe five different methods of ...

Assignmentpart 1backgroundwhen you look around at the world

Assignment Part 1 Background When you look around at the world, you can see many examples that demonstrate how an object's or a system's structure relates to its function. The structure of a highway system, for example, ...

Assignment anatomy amp physiologydirections be sure to

ASSIGNMENT: Anatomy & Physiology Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to u ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate