What was the total amount of chloride present

Assignment Help Mechanical Engineering

Reference no: EM131084654

In an isotope dilution experiment, chloride was determined by adding 5.0 mg of sodium chloride containing 38CI (t1/2 = 37.3 min) to a sample. The specific activity of the added NaCl was 4.0 X 104 cps/mg. What was the total amount of chloride present in the original sample if 400 mg of pure AgCI was isolated and if this material had a counting rate of 35 cps above background 148 min after the addition of the radiotracer?

Reference no: EM131084654

Questions Cloud

A sample value of random variable r : A student's final exam grade depends on how close the student sits to the center of the classroom during lectures. If a student sits r feet from the center of the room, the grade is a Gaussian random variable with expected value 80 - r and standar..

What type of sampling method has mr. roberts used : To ensure that he will be able to compare viewing habits across ethnic groups, he randomly samples 50 Caucasian households, 50 African-American households, 50 Hispanic households and 50 Asian households. What type of sampling method has Mr. Rober..

Portion of cell cycle : Many cells in the body divide only rarely,that is neurons, Rbcs and keratinocytes are the examples. Which portion of cell cycle would such cells be considered?

What was alburt banduras influential study : What was Alburt Banduras influential study? What was the purpose of the study? What was the basic research design? What were the results? What conclusions can be drawn from these findings? Please give in short answer form.

What was the total amount of chloride present : What was the total amount of chloride present in the original sample

Measured as an integer number of pounds : A business trip is equally likely to take 2, 3, or 4 days. After a d-day trip, the change in the traveler's weight, measured as an integer number of pounds, is uniformly distributed between -d and d pounds. For one such trip, denote the number of..

Calculate the mass in milligrams of penicillin in the sample : Calculate the mass in milligrams of penicillin in the sample.

Surrounding peritubular capillaries : In the kidney, the distal convoluted tubules of the nephron contain a filtrate in which the sodium concentration is lower than in the surrounding peritubular capillaries. If sodium ions move from filtrate to blood, what process is at work?

Write an organized essay that explores the norm you violated : Violate your chosen folkway (not a law) in at least one situation and document it with pictures, video, and/or notes. Be sure to note how you feel when you violate the norm, as well as other people's reactions to the violation. If you do not recei..

User Account

All Pages