What would the percentage of thorium-232 (parent compound) be in a rock that was dated 1.4 billion years?
Solved
Show answers
More tips
- L Leisure and Entertainment How to Find a Phone Number by Address: The Ultimate Guide...
- P Philosophy How to Properly Create a Vision Board?...
- C Computers and Internet What is Web 2.0 and How Does it Work?...
- S Style and Beauty Is Photoepilation the Solution to Unwanted Hair Forever?...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Chemistry
- C Chemistry Three functions of the stem are to support the plant and transport and store ....
- C Chemistry Which emission line in the atomic emission spectrum of hydrogen has a frequency sufficient to produce 4.85*10^-22 kJ of energy per photon...
- C Chemistry Did i do this correctly? someone please help and if i m incorrect please give me the right answer!...
- C Chemistry 2020-21 Home Modules Announcements Grades Conferences 8.19.R - Lesson: Stoichiometry Mass-to-Mole Conversion Assessment Started: Apr 20 at 11:38am Please complete the...
- C Chemistry How did the Super Cow or Belgian Blue achieve such muscular body structure?...
- C Chemistry Please help this is due today If you don’t know the answer please don’t answer and if you do I will report you...
- C Chemistry Compare the structure of carbohydrates and proteins. Looking at the structure of each molecule, why do carbohydrates and proteins both have the same number of calories...
- C Chemistry The initial volume is 20 Liters and the Inital Pressure is 2 atm. What would be the Pressure if the volume is increased to 30 Liters ?...
- C Chemistry How many moles are in 6 x 10^23 molecules of H2O...
- C Chemistry Nombra las siguientes estructuras de aminas...
Ответ:
93.33%
Explanation:
Thorium is a radioactive element with a molecular weight of 232g/mol. Thorium is very stable and can have 14.05 billion years of half-life period. Every half-life passed, the parent compound mass will be decayed by half. If the age of the rock is 1.4 billion years, then the amount of the parent compound will be:r = ½^(time elapsed/half-life)
r = ½^(1.4bil years/14.05 bil years)
r = ½^(0.0996)= 0.9333
r= 93.33%
The rock will have 93.33% of the parent compound and 6.67% of the decayed compound.
Ответ:
Mercury I guess?