A scientist receives a vial containing protein at a concentration of 35mg ml -1 and is asked to add 0.25ml of it to 6.75mls of Biuret solution. What is the concentration of protein in the Biuret solution in mkg/ml?

9,628 results

How would a scientist use DNA or protein sequences from three different organisms to construct a cladogram?

2. Science

Q1: Why do scientist use models? A.) Scientist use models to learn about things that are too small, too late, or too complex to observe directly. B.) Scientist use models because doing so is always part of the scientific method. C.) Scientist use models

3. Algebra

Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb mixture that is 10% protein?

4. algebra

In 2009, a diabetic express company charged \$38.85 for a vial of type A insulin and \$30.49 for a vial of type B insulin. If a total of \$2004.96 was collected for 60 vials of insulin, how many vials of each type were sold?

5. science/bioligy

How would a scientist use DNA or protein sequences from three different organisms to construct a cladogram? need help!!! how do I do this??

6. Chemistry

1)Buttermilk has 9 grams of protein and 12 grams of carbohydrate per cup (237ml). Estimate the concentration in mol/L of protein using the fact that the average protein is 300 amino acids long and the average amino acid has a mass of 110 amu. 2)Lactose

7. Math

Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240-lb mixture that is 10% protein?

8. science

What is a cladogram? Explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram. please i really need this its my last test for science of this year.

9. Algebra

In 2009, a diabetic express company charged \$39.95 for a vial of type A insulin and \$30.34 for a vial of type B insulin. If a total of \$1747.64 was collected for 50 vials of insulin, how many vials of each type were sold?

10. Science

what is a cladogram? Explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram?

11. Science

How might creativity help a scientist? A.Creativity allows a scientist's findings to be trusted. B.Creativity allows a scientist to develop new ideas or evaluate old ideas in a new way. C.Creativity assures that the scientist has a sense id right and

12. science

what is a cladogram? explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram. I'm pretty bad at short answer questions, and I have to get done with this test TODAY!!!! pls help me!!!!!!!!!!!!

13. Bio

One way to determine the concentration of protein in a solution is to perform a "protein assay". There are several assay kits on the market that one can use, but they all rely on the common paradigm that the aromatic amino acid residues of a protein

14. chemistry help

How do forces determine the shape of a protein? A. The covalent bonds in the protein determine the shape of the protein. B. The protein folds into complex shapes through intermolecular forces. C. Polar parts of a protein are repelled by water. D.

15. Algebra

Soybean meal is 16% protein and corn is 9% protein. How many pounds of each should be mixed to get a 350 lb mixture that is 12% protein?

16. Math

Soybean meal is 18% protein, cornmeal is 9% protein. how many pounds of each should be mixed together to get a 360 pound mixture that is 15% protein ? Word problems are my favorites, but this one is confusing me. Help is very much appreciated

17. science

A scientist goes to a large international conference and hears about a new discovery. The scientist is very excited about these new findings and decides to verify the other scientists' results by conducting her own investigations. The scientist is being

18. Bio Lab

A scientist receives a vial containing protein at a concentration of 35mg ml -1 and is asked to add 0.25ml of it to 6.75mls of Biuret solution. What is the concentration of protein in the Biuret solution in mkg/ml?

19. Science

When would a model be most beneficial to a scientist? A. when a scientist wants to do a hands on experiment B. when a scientist wants to represent things that are either very large or very small. C. when a scientist wants to be creative D. when a scientist

20. Physical Chemistry

A 100 amino acid folded protein (F) is in equilibrium with it’s unfolded (U) (or denatured) form. Let ΔrH(std) =+347 kJ mol-1 and ΔrS(std) =-1010 J K-1 mol-1 for the equilibrium (F U) at 25℃. (a) Calculate the concentration of protein in each form if

21. Algebra

How do I set this up to solve? In 2004, the Diabetic Express charged \$27.06 for a vial of Humulin insulin and \$34.39 for a vial of Nevolin Velosulin insulin. If a total of \$1565.57 was collected for 50 vials of Insulin, how many vials of each type were

22. Algebra

Soybean meal is 12% protein; cornmeal is 6% protein. howmany pounds of each should be mixed together to get a 240 pound mixture that is 8% protein?

23. Chemistry

Information beforehand: mass of weighing vial + NaCl / g 16.2597 mass of “empty” weighing vial / g 14.8136 mass of NaCl used / g Final volume of solution / L 0.2500 Questions: 1) Calculate the concentration of the NaCl solution (in mol L-1 and with the

24. Biochem

If the calibration curve for a Beer's Law plot of a protein assay had a slope of 0.433 when absorb acne, A, was plotted as a function of protein concentration, c, in mg/mL. The absorbance of an unknown protein sample was 0.345. What is the concentration of

25. Biology

We are learning about proteins and their structure, but one thing is confusing me. At what structural point is something considered a protein? Is a protein formed after two amino acids synthesis, or is a protein the whole structure (all four levels) put

26. science

What is a cladogram? Explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram.

27. Extraction

Lab..again 0.050g benzoic acid/succinic acid/sodium benzoate. -choose 1 and put 0.050g of that compound into 5ml conical vial -add 2ml methylene chloride and 2ml water -cap vial and shake until all solid is dissolved. -let solution sit until 2 layers are

28. Algebra

Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed in order to get 240lbs, mixture that is 8% protein

29. algebra

Soybean meal is 16% protein: cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb. mixture that is 14% protein?

30. algebra

Soybean meal is 12% protein: cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb. mixture that is 8% protein?

31. math

soybean is 16% protein cornmeal is 8% protein how much pounds should we mix together to get 320 lbs that is 10% protein

32. managerial economics mathQ6

A and B are playing a simultaneous moves game. A can choose either High or Low and B can choose either Near or Far. If A chooses High and B chooses Near, A receives 5 and B receives 5. If A chooses High and B chooses Far A receives 3 and B receives 7. If A

33. Biology Lab

Can you please show me how to answer this question using C1V1=C2V2 A scientist receives a vial containing a protein at at concentration of 35mg/ml and is asked to add 0.25ml of it to 6.75mls of Biuret solution. What is the concentration of protein in the

34. Chem

If the calibration curve for a Beer's Law plot of a protein assay had a slope of 0.433 when absorb acne, A, was plotted as a function of protein concentration, c, in mg/mL. The absorbance of an unknown protein sample was 0.345. What is the concentration of

35. Biochemistry

A protein sample is diluted 5-fold before measuring the protein concentration in a protein assay. In the protein assay, the concentration of the diluted protein is determined to be 0.27 mg/mL. What is the concentration of the original protein sample?

36. Biochemistry

Can someone help me calculate protein concentration using the Bradford Assay? If you could show me how to do tube 2, that'd be great. Tube 1: 0 ul Protein Stock Solution, 800 ul Water, 0 ug Protein, Absorbance @595nm = 0 Tube 2: 10 ul Protein Stock

37. chemistry

Expressing concentration in units of μg/mL or mg/mL are common in biochemistry, where accurate molecular weights of biomolecules are not always known. The plot below is the standard curve of a Bradford assay, a colorimetric method used to determine the

38. chem

An empty vial has a mass of 56.42 g. If the vial has a mass of 233.13 g when completely filled with liquid mercury (d = 13.53 g/cm3), what is the volume of the vial?

39. Biology

Hi, I am doing my lab assignment about Protein Analysis. Our job is to find the concentration of the casein protein in our original Unknown sample with the initial volume of 2ml. So after plotting the graph of the data given, we are supposed to find the

40. Biology

3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

41. Biology

3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

42. Biology

For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

43. Biology

3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

44. Calculus

Problem 5. Protein Concentration in Cells Consider a growing bacterial cell that is producing a protein involved in binary fission. Suppose that, at a particular point in time, a bacterial cell has a volume of 1000 μm3 (microns cubed) and is growing at a

45. Biology

I need to find a way to measure protein concentration. It's for part of my infection and immunity lab report. We've done about radial immunodiffusion calculating the concentration of bovine serum albumin in unknown samples, and the last question is: What

46. math

Prochlorperazine is available in 10ml multiple dose vial. Eash ml contains 5mg. How many 2mg doses can be taken from this vial?

47. Chemistry

PLEASE HELP. If I have 0.10 mL of 200 mcg/mL protein, 0.90 mL of distilled water, and 2.00 mL of Bradford reagent, what is the concentration of the protein?

48. Pharmacology

This is super confusing, I'm sorry! The homework: You have to administer simultaneously two drugs which are each 90% protein bound when administered separately. Please use the law of mass action to calculate how do you have to change the administered doses

49. chemistry college

Give two advantages and two disadvantages to using the biuret reaction to measure protein concentration compared to measuring the protein absorbance directly at 280nm.

50. chemistry

Buttermilk has 9 grams of protein and 12 grams of carbohydrate per cup (237ml). Estimate the concentration in mol/L of protein using the fact that the average protein is 300 amino acids long and the average amino acid has a mass of 110 amu

51. Pharmacy Technician

The label of a 10 g vial states the you are to add 176 mL to get a concentration of 500 mg/mL. What is the powder volume?

52. BioChem

I have a hard time with this question. Please help. One way to determine the concentration of protein in a solution is to perform a "protein assay". There are several assay kits on the market that one can use, but they all rely on the common paradigm that

53. english

does this make sense? Figure 1. Protein Analysis - Determination of the protein concentration of casein in an unknown sample after the addition of the biuret reagent from the results over test tubes 1 to 5.

54. chemistry

this is a question for a lab experiment...in the lab we got 2 empty vials and were supposed "eyeball" 1.0g of NaCl into each of the vials using a vial with NaCl in it already as a sample. Then we weighed the filled vials on analytical balance and recorded

55. Biology

Imagine you start an experiment with two vials of flies. One fly vial has 20 flies, the other has 200 flies. After 20 generations of mating, which vial has lost the most alleles across the genome? Has genetic variation increased or decreased within each

56. Science (theory of evolution)

How would a scientist use DNA or protein sequences taken from three different organisms to construct a cladogram.

57. science

How would a scientist use DNA or protein sequences taken from three different organisms to construct a cladogram.

58. sciences

Assume you are starting a new research project from scratch, you are interested in one of the following proteins and want to purify this protein for biochemical characterization. Please choose one of the proteins below and write a one-page research

59. Chemistry

Robin the Research scientist prepares 100 mLs of a solution of 100 mM of Tris HCl. What is the pH? and part two for this question Calculate the pH when the scientist adds 100 ul of 50% NaOH I am confused since we do not know the conjugate base

60. Science

How might creativity help a scientist? a)creativity allows a scientist's findings to be trusted. b)Creativity alllows a scientist to develop new ideas or evaluate old ideas in a new way. c)Creativity assures that the scientist has a sense of right and

How would a scientist use DNA or protein sequences from three different organisms to construct a cladogram? don't understand this how do I write this???? help!!!!

62. bio-assap

if there were two proteins samples of exactly the same concentration but one sample contained a protein having a significantly higher number of arginine and lysine residues compared to that of the other sample - would there be a difference in the amount of

63. Science

The role of protein in hormone/enzyme functions? How protein assists with immunity? The protein needs of an infant or toddler compared to an adult? The importance of protein in maintaining fluid/electrolyte and pH balance? Amino acids and how they relate

64. art

In what way is a conservator similar to a scientist? A:Both conservator and scientist relish doing research for extended periods of time. B:a conservator experiments with conservation materials just as a scientist experiments with different hypothesis.

65. Biology

The shrunken gene of wheat encodes a large enzyme that converts glucose to starch in its grains. How would insertion of a 1 kb transposon into codon 23 of this gene affect the protein produced from this allele? A. The protein would be longer and still

66. Biology

1. A famous scientist once said that wherever in the universe life exists, some of those life-forms must be colored. Why would the scientist make such a statement? 2. One of the accessory pigments used in photosynthesis is beta-carotene, a carotenoid found

67. physics

When an immersion glass thermometer is used to measure the temperature of a liquid, the temperature reading will be affected by an error due to heat transfer between the liquid and the thermometer. Suppose you want to measure the temperature of 7 mL of

68. algebra

You are asked by the Pharmacist to add 45mEq of Ca Gluconate in an IV bag of D5% W1000ml. You have a concentrated vial of Ca Gluconate 4.4mEq/ml 50ml. How many ml of the concentrated vial needs to be added to the IV bag?

69. Science

I need to make 10 ml of bacitracin at 1 uM. I have purchased 5 mg of it. The MW of it is 458.6 g. How would I go about doing this and what would be my final answer? Thank you. concentration= moles/volume= mass/(MW*volume) or mass= concentration*volume*MW =

70. Microbiology

Which of the following molecules do you think would make good antigens for recognizing a pathogen? You may choose more than one. 1) a cell wall protein 2) a piece of DNA inside a cell 3) a protein that is part of a flagella 4) a uniquely shaped protein

71. Help: biology

1. You have in front of you three vials containing a clear liquid. You are told that each vial contains one of the following carbohydrates: Fructose, Sucrose, Amylose. What experiments could you carry out to determine the composition of each vial. What

72. BMB

1.You have a mixture of protein A and protein B in a buffer of pH 7. The pI of protein A is 3 and the pI of protein B is 8. The molecular weight is the same. (a) What kind of column chromatograph would you use to separate them? Explain your answer in 2-3

73. Life sciences

What are the biological terms of the following 1.finger-like outgrowths of the epidermir roots 2. scientist who specialise in the study of the annual rings of trees 3. the membrane around the vacuole 4. the building blocks of protein

74. Biochemistry

You wish to make 3 reactions (1 ml each) with the specified amounts of protein. The remainder of each reaction consists entirely of buffer. The source of your protein is a stock solution that has a concentration of 0.5 mg/ml. What is the volume of stock

75. health

Pharmacist dilutes a vial containing 1gm of antibiotic with 10ml of water. The solution is then added to 100ml of d5w. What is the concentration, in mg/ml, of the antibiotic in the d5w?

76. algebra

soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb mixture that is 125 protein?

77. algebra

Soybean milk is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240 pound mixture that is 8% protein?

78. algebra

Soybean meal is 14% protein, cornmeal is 7% protein. how many pound of each should be mixed together in order to get 280-lb mixture that is 13% protein?

79. math

Soybean Meal Is 16% Protein; Cornmeal Is 8% Protein. How Many Pound Of Each Should Be Mixed Together In Order To Get 320 Lb. Mixture That Is 15% Protein?

80. math

Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360lb. mixture that is 13% protein?

81. Algebra

Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 10% protein?

82. algebra

Soybean meal is 12% protein; Cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240lb mixture that is 8% protein?

83. algebra

Soybean Meal Is 16% Protein; Cornmeal Is 8% Protein. How Many Pound Of Each Should Be Mixed Together In Order To Get 320 Lb. Mixture That Is 12% Protein?

84. Algebra

Soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360 lb mixture that is 12% protein?

85. math

Soybean meal is 18% protein; cornmeal is 9% protein. How many pound of each should mixed together in order to get 360-lb mixture that is 13% protein

86. algebra

soilbean meal is 18% protein, cornemeal is 9% protein ow many pounds o each should be mixed together in oder to get 360lbs. mixture that is 14 protein?

87. Algebra

Soymeal is 12% protein; cornmael is 6% protein. How many pounds of each should be mixed together in order to get 240lb mixture that us 9% protein

88. Math

soybean mean is 16% protein and corn mean is 9% protein. how many pounds of each should be mixed to get a 350 pound mixture that is 13% protein?

89. Biology, Chemistry

I know how to carry out an absorption spectrum I just need help on how to to prepare my test tubes and what to put in then. I am very confused and any help would be greatly appreciated. THANKS ! You will be given a sample containing an unknown

90. Chemistry

Cow's milk contains 32g of protein in 1052g of milk. What is mass/mass percent concentration of protein in the milk?

91. Biology

A stock protein sample that has a concentration of 250.0mg/ml. You need to dilute this sample to 20.0 mg/ml in buffer. The final volume of the diluted solution is 5.0ml. how much of the stock protein solution and buffer are required to achieve this? Answer

92. Algebra

In 2009, a diabetic express company charged \$39.95 for a vial of type A insulin and \$30.34 for a vial of type B insulin. If a total of \$2022.21 was collected for 60 vials of insulin, how many vials of each type were sold?

93. Math

In​ 2009, a diabetic express company charged ​\$39.95 for a vial of type A insulin and ​\$30.49 for a vial of type B insulin. If a total of ​\$1446.64 was collected for 40 vials of​ insulin, how many vials of each type were​ sold?

94. science

Why do u think the vial of water in plain ice didn't freeze, bu the vial of water in salted ice did freeze?? People put salt on ice when they make ice cream. Why do they do that?

95. science

A scientist working on developing a new drug for a company that makes medicine. The research is taking longer than the scientist had thought it would and the company is putting pressure on the scientist to finish quickly. The drug is finally ready to begin

96. factors which influence

List three different factors which influence the rate of enzyme activity and specifically explain each factor’s influence on enzyme activity. Since enzymes are protein, they are very sensitive to environmental conditions. The very nature of large 3-

97. Math

Pydrotinces comes in 50 mg/mL. A child is to get 2 mg. The volume in a miniscule of 0.04mL, which is really had to measure. Prepare a dilution so that final concentration is 5mg/mL. How much diluent well you need is the original products is 50mg/mL and you

98. statistics

Dr. Snyder teaches a large introductory statistics course. In the past, the proportion of students that receive a grade of A is 0.20. The proportion that receives a B is 0.30. The proportion that receives a C is 0.30. The proportion that receives a D is

99. College Chem.

A scientist adds 1.00 moles of phosphoric acid to a liter of water to make a solution. How many moles of NaOH should be added to ensure that the concentration of H2PO4- is equal to three times the concentration of HPO42? Remember that H3PO4 is a triprotic

100. Dr Bob

On preparation of a solution of protein, you attempted to dissolve the substance in water, but a suspension resulted. Drop-wise adition of NaOH solution, with stirring, eliminated the suspension. Addition of acid to the original suspension had no effect.