Enter your answer in the provided box. A rock sample originally contains 4.10 mg of 238 U. How much 206 Pb will be in the rock sample when it is 3.2 × 10^ 8 years old? The half-life of uranium \−238 is 4.51 × 10^ 9 years.
Enter your answer in the provided box. A rock sample originally contains 4.10 mg of 238...
Enter your answer in the provided box. A rock sample originally contains 3.87 mg of 238U. How much 206 Pb will be in the rock sample when it is 2.5 x 108 years old? The half-life of uranium-238 is 4.51 x 10º years. mg
Be sure to answer all parts. Determine the age of rock that contains 23.2 mg of 238 U and 2.29 mg of 206 Pb. (t 12 of 238 U 4.51 x 109 yr). Enter your answer in scientific notation. x10 yr
Part A A rock contains 0.102 mg of lead-206 for each milligram of uranium-238. The half-life for the decay of uranium-238 to lead-206 is 4.5 109 yr. The rock was formed years ago. 5.02. 108 3.81 108 7.23.108 4.59 108 5.49. 108 Request Answer Submit If we start with 1.000 g of strontium-90, 0.887 g will remain after 5.00 yr. This means that the half-life of strontium-90 is yг. 28.8 4.43 41.6 3.91 5.64 Request Answer Submit
A moon rock collected by a U.S. Apollo mission is estimated to be 4.40 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206 Pb in the rock, if it currently contains 1.285 g of 238U? The half-life of 238 U is 4.47 x 10 years. 206 Pb mass: 0.5497
Question 4 U-238 decays to Pb-206 with t12-4.5 x 10°yr. A rock contains 6.75 ng of U-238 and 1.50 ng of Pb-206. How old (yr) is the rock? O 1.4 x 10yr 2.8 x 10°yr 15x10°y 5.2 x 10yr 98x 10°
A moon rock collected by a U.S. Apollo mission is estimated to be 4.30 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 200 Pb in the rock, if it currently contains 1.470 g of 238U? The half-life of 238 U is 4.47 x 10 years 0 206Pb mass:0.4
Not the answer above Be sure to answer all parts 206 Determine the age of rock that contains 41.7 mg of23*U and 3.93 mg of20'Pb. of 238U 4.51 x 109 yr) (1/2 Enter your answer in scientific notation. 9 x 10 15.3 yr
4. An analysis of a mineral in Rock Sample B-273 reveals that only 6.25% of the original parent radionuclide carbon-14 remains. A) What is the stable daughter isotope we would also find? B) How many half-lives have elapsed in Rock Sample B-2737 C) How old is Rock Sample B-273? Be sure to show your work. 5. An analysis of a mineral in Rock Sample C-451 reveals that 75% of the original parent radionuclide uranium-238 remains. A) What is the stable...
Applications of radioactive decay extend beyond potential terrorism. There are a number of regularly used practical applications. One such application is to use radioactive decay as a mechanism for determining the age of a sample of bones, rocks, meteorites, etc. Say you area scientist tasked with analyzing samples of moon rocks. Your moon rock contains small amounts of Uranium-238. U-238 decays into lead-206 with a half-life of 4.5 billion years. How old is your rock if 55.0% of the original...
Enter your answer in the provided box. A sample of gas originally occupies 25.54 L at 0.00 °C. What is its new volume when it is heated to 17.00 °C? (Assume constant pressure.)