Chemistry, 05.12.2020 23:40 ashleydenson1517
The table shows the amount of radioactive element remaining in a sample over a period of time.
Radioactive Decay Rate
Amount of Radioactive Sample
(grams) Time(years)
56.0 - 0
47.1 - 400
39.6 - 800
33.3 - 1,200
28 - 1,600
Part 1: What is the half-life of the element? Explain how you determined this.
Part 2: How long would it take 312 g of the sample to decay to 9.75 grams? Show your work or explain your answer.
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 08:30
In a chemical reaction at equilibrium, the rate of the forward reaction the rate of the reverse reaction. if the rate of the forward reaction more products are formed.
Answers: 1
Chemistry, 22.06.2019 09:00
At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure
Answers: 1
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 11:00
The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?
Answers: 1
You know the right answer?
The table shows the amount of radioactive element remaining in a sample over a period of time.
Radi...
Questions
Mathematics, 06.10.2019 03:00
Mathematics, 06.10.2019 03:00
Spanish, 06.10.2019 03:00
Business, 06.10.2019 03:00
Biology, 06.10.2019 03:00
Chemistry, 06.10.2019 03:00
Mathematics, 06.10.2019 03:00
Biology, 06.10.2019 03:00
Mathematics, 06.10.2019 03:00
Business, 06.10.2019 03:00
Biology, 06.10.2019 03:00
Physics, 06.10.2019 03:00
Physics, 06.10.2019 03:00
