Question

A 9.52 x 10-5 mol sample of rubidium-86 emits 8.87 x 1016 beta particles in one...

A 9.52 x 10-5 mol sample of rubidium-86 emits 8.87 x 1016 beta particles in one hour. What is the half-life of rubidium-86?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 7.85x10^-5 mol sample of copper-61 emits 1.47x10^19 positrons in 90.0 minutes. What is the decay...
A 7.85x10^-5 mol sample of copper-61 emits 1.47x10^19 positrons in 90.0 minutes. What is the decay constant?
1. Suppose that you are given a 200 gram sample of a radioactive substance with a...
1. Suppose that you are given a 200 gram sample of a radioactive substance with a half-life of 45 days. How many grams will be left after 360 days? 2. A radioactive substance is found to register 5000 counts per second on a Geiger counter. Twenty-four hours later it registers 1250 counts per second. What is its half-life? 3. If a sample emits 2000 counts per second when the detector is 1 meter from the sample, how many counts per...
1. True or False? It is possible for a common hydrogen nucleus to emit an alpha...
1. True or False? It is possible for a common hydrogen nucleus to emit an alpha particle. Hint: An alpha particle is a helium nucleus with two protons and two neutrons. A common hydrogen nucleus has only one proton and no neutrons. (a) True (b) False. 16. X-rays are most similar to which of the following: (a) alpha particles (b) beta particles (c) gamma rays 2. True or False? All isotopes of the same element have a different number of...
Zinic Chloride in a 50.0ml sample of wateris titrated with 1.87 X 10^-5 M EDTA solution,...
Zinic Chloride in a 50.0ml sample of wateris titrated with 1.87 X 10^-5 M EDTA solution, requiring 24.70ml of the complexing agent. What is the zinic concentration in the water sample expressed as; a) mol/L? b) mmol/L c) g/L d) ppm with strach
1. A sample of Thallium-204 has 10 mCi of activity. The Curie (Ci) is one unit...
1. A sample of Thallium-204 has 10 mCi of activity. The Curie (Ci) is one unit for measurement of:? a) The ability of photons to produce ionizing radiation b) Rate of radioactive events (eg. disintegrations per second) c) The amount of energy absorbed by tissue d) All of the above 2) The most important factor for determining the exposure hazard of a particular isotope is: a) Activity b) Decay energy c) Half-value year d) Physical state 3) Which type of...
1. There are 3.01 x 10^23 atoms present in a) 0.5 mol of Na b) 0.5...
1. There are 3.01 x 10^23 atoms present in a) 0.5 mol of Na b) 0.5 mol of C c) 0.5 mol of Ar d) none of the above e) all of the above 2. Which of the following scenarios does NOT represent a quantitative analysis? a) A chemist tests a sample of water for the presence of chloride ions. b) A police officer uses a breathalyzer to measure the amount of alcohol in exhaled air. c) A lifeguard tests...
Question 1 What is the vertex of f(x) = x2 + 3x + 2? Select one:...
Question 1 What is the vertex of f(x) = x2 + 3x + 2? Select one: a. 7 b. (0, 2) c. (-3/2, -1/4) d. -3/2 e. None of these Question 2 What is the exact value of sin (22.5 degrees)? Select one: a. .383 b. sqrt (2) c. sqrt ((2 – sqrt(2)) / 2) d. sqrt ((2 + sqrt (2)) / 4) e. Impossible Question 3 Solve the system: 2x + 3y = 7, 3x - 5y = 1...
“A Case Study on Bacterial Meningitis and Haemophilus Vaccine” At half past three one afternoon during...
“A Case Study on Bacterial Meningitis and Haemophilus Vaccine” At half past three one afternoon during late fall of 1987, Catherine received a phone call from her mother. She felt a moment of panic. Was Josephine all right? Catherine worked at a day care center and Josephine, her 34-month-old daughter, was being taken care of by Catherine’s mother during the day while Catherine was at work. “You have to come immediately. Josephine has a fever, and she is delirious her...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT