3. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50...

Question

Question

3. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50 percent of the test sample. It is usually

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

LD50 of FD&C = 300 mg/kg

Weight of person = 105 lb

1 lb = 0.454 kg

So, weight of person = 105 x 0.454 kg = 47.6 kg

So, lethal dose = 300 x 47.6 mg = 14288 mg = 14.3 g

Comment if any problem

Add a comment

Answer 2

Similar Homework Help Questions

3. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50...

3. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50 percent of the test sample. It is usually expressed in mg of substance per kg of body weight (mg/kg). FD&C Blue Dye #1 has an LD50 of 300 mg/kg. Determine the mass of blue dye that would be required to reach the LD 50 for a 105 lb person.
2. Calculate the powdered drink. The Lethal dose (LD50) is the amount of an ingested substance...

2. Calculate the powdered drink. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50 percent of the test sample. It is usually expressed in mg of substance per kg of body weight (mg/kg). FD&C Blue Dye #1 has an LD50 of 300 mg/kg. Determine the mass of blue dye that would be required to reach the LD50 for a 150lb person. 3. Dyes have very high molar absorptivity. Why is this an advantage for...
For determining the toxicity of different compounds, the concept of LD50, the lethal dose for 50%...

For determining the toxicity of different compounds, the concept of LD50, the lethal dose for 50% of test subjects is used. The LD50 in rats for caffeine is 192mg per 1 kg of body weight. Assuming the same LD50 for humans.For a 180-lb person, calculate the number of cups of coffee that must be ingested to provide the LD50 for caffeine if one cup is 12 fluid ounces and there is 100mg of caffeine per 6 fluid ounces of drip...

Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of...

Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 185 lb (83.9 kg ) is 8.50×10−3 mol . What volume of a 0.0320 M KCN solution contains 8.50×10−3 mol of KCN?
Assume that a lethal dose of aspirin is 50 mg per kg of body weight. How...

Assume that a lethal dose of aspirin is 50 mg per kg of body weight. How many 81 mg aspirin tablets (baby aspirin) would produce a lethal dose for a 25-pound child?
Part A Potassium cyanide is a toxic substance, and the median lethal dose depends on the...

Part A Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 145 lb (65.8 kg ) is 7.27×10−3 mol . What volume of a 0.0820 M KCN solution contains 7.27×10−3 mol of KCN? Part B Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach...

LEILU.23.27 Eugenia Bueso-Alas: Attempt 2 UUTUUU-Dye SD Incorrectly Low Question 3 (20 points) An unknown food-dye...

LEILU.23.27 Eugenia Bueso-Alas: Attempt 2 UUTUUU-Dye SD Incorrectly Low Question 3 (20 points) An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a straight line is obtained with the formula: Abs = 4.350x +0.06 An unknown food-dye soluton is diluted and it's absorbance is found to be 0.65. What is the molarity of the diluted unknown, to two significant figures? Do not type units...
need help with questions 5,6, and 7 Assignment #2 WO Chapter 3, 4, 5, 6 &...

need help with questions 5,6, and 7 Assignment #2 WO Chapter 3, 4, 5, 6 & 7: Energy Balance and Weight Management Directions: Answer the following questions using the formulas found in Chapter 6 & 7. All work must be added to receive full credit (10-points). By completing this assignment you will satisfy #4 ECO objective and #11 and #12 MO/CO. 1. Calculate the EER for a 25-year-old man who weighs 198 pounds, is 5'8" tall and has a low...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...

10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...

3. The Lethal dose (LD50) is the amount of an ingested substance that will kill 50...

Homework Answers