subject
Chemistry, 25.10.2020 16:20 mj1226

A sample of radioactive iodine-131 is found to have an activity level of 4X10^-6 curies and a half-life of 8 days. HOw much time must pass before the activity level of the radioactive waste drops to 2.5 X10^-5 curies?

ansver
Answers: 3
Show answers

Another question on Chemistry

question
Chemistry, 23.06.2019 01:40
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?
Answers: 1
Answer
question
Chemistry, 23.06.2019 09:30
Which element below could be and isotope of this atom
Answers: 1
Answer
question
Chemistry, 23.06.2019 10:00
Compare and contrast an assemblage and a pollen fingerprint by defying both and giving examples of each from the chapter.
Answers: 3
Answer
question
Chemistry, 23.06.2019 15:30
How does the electron-cloud model describe electrons?
Answers: 3
Answer
You know the right answer?
A sample of radioactive iodine-131 is found to have an activity level of 4X10^-6 curies and a half-l...
Questions
question
Business, 16.06.2021 18:00
The May transactions of Bramble Corp. were as follows: May 4 Paid $610 due for supplies previously purchased on account. 7 Performed advisory...
question
Mathematics, 16.06.2021 18:00
Match the reasons with the statements in the proof. Given: c | | d, m 4 = m 5 Prove: m 7 = m 8 1. c||d, m∠4=m∠5 2 Vertical angles are equal. 2. m∠4 =...
question
Mathematics, 16.06.2021 18:00
In an observational study over 20 years, a sample of Swedish men reported the amount of fish in their diet (none/small or moderate/large) and whether...
question
Mathematics, 16.06.2021 18:00
If the farmer isn't present, the fox cannot be left with either the dog or the goose, or both. If need be, the goose can be left with the grain provid...
question
Chemistry, 16.06.2021 18:00
Burning 16 grams of substance A requires 64gO2 to obtain CO2 and water in the ratio mco2:mh2o=11:9. Calculate the volume of CO2 and water produced...
question
Mathematics, 16.06.2021 18:00
Was this equation solved correctly? How do you know? Subtract three from both sides Combine like terms Divide by 4 on both sides Si...
question
English, 16.06.2021 18:00
Put in passive form (Simple Present or Present Continuous tense) : "The parts of these machines (make) in Japico but (assemble) here. " Can we repeat...
question
Social Studies, 16.06.2021 18:00
A large farm owned and operated by peasants as a group. :) Ignore...
question
Chemistry, 16.06.2021 18:00
a solution that is holding more dissolved solute than it should be able to at a particular temperature?...
question
Business, 16.06.2021 18:00
On March 15, 2017, Gilbert Construction contracted to build a shopping center at a contract price of $220 million. The schedule of expected (which equ...
question
English, 16.06.2021 18:00
In this excerpt, the sequence of events creates suspense by starting the story in the middle of things. describing a setting that causes antici...
question
Mathematics, 16.06.2021 18:00
4: 2 cups of sugar is used to make enough lemonade for 6 people. How much sugar is needed to make enough lemonade for 18 people? Question #6: 12 cans...
question
English, 16.06.2021 18:00
Which is an example of point-by-point organization in a comparative essay...
question
English, 16.06.2021 18:00
Essay prompt: Does society shape the individual or does the individual shape society?...
question
Social Studies, 16.06.2021 18:00
Những thách thức về kinh tế và xã hội bắt nguồn từ sự khác biệt về cấu trúc tuổi của dân số? Sinh viên hãy liên hệ với thực tế của Việt Nam?...
question
Mathematics, 16.06.2021 18:00
To rationalize the denominator of 5-V7 9- (14 · you should multiply the expression by which fraction? 5+ 7 9-V14 9-14 9...
question
Mathematics, 16.06.2021 18:00
F(x) = x2. What is g(x)? ...
question
English, 16.06.2021 18:00
English comprehension ​pls hurry : ...
question
Social Studies, 16.06.2021 18:00
Who landed on island of Hispaniola...
question
Chemistry, 16.06.2021 18:00
Imagina que se necesita preparar 5 l de disolucion salina (NaCi) de concentracion 2 m ¿cuantos gramos de sal se requieren por cada litro de disolucion...
More questions: Chemistry Another questions
Questions on the website: 13722367
See results (0)