Please help ### Understanding the Half-Life of U-235**Missed This?** For additional information, refer to **Section 17.5**. Click on the Review link to access this section in your eText.One of the nuclides in spent nuclear fuel is U-235, an alpha emitter with a half-life of 703 million years.---#### Part A**Question:** How long would it take for the amount of U-235 to reach 1/2 of its initial amount?**Student's Response:** \( t = 2.11 \times 10^9 \) million years---**Feedback:** Your answer is incorrect. Please try again. You have 9 attempts remaining.**Options:** - [Submit](#) - [Previous Answers](#) - [Request Answer](#) ---This interactive problem allows you to calculate the half-life of U-235. Use relevant sections of your textbook or eText for guidance if needed. **Educational Text Transcription**---**MISSED THIS?** *Read Section 17.5. You can click on the Review link to access the section in your eText.*Radium-223 decays with a half-life of 11.4 days.---**Question:**How long will it take for a 0.240-mol sample of radium to decay to \(7.50 \times 10^{-3}\ \text{mol}\)?---**Input Box:**- A text box is provided where you can enter your answer in days.---**Buttons:**- **Submit:** To submit your answer.- **Request Answer:** To request the solution.---**Additional Links:**- **Provide Feedback**- **Next**---

To solve this problem, first find out rate constant using half life. Then check the formula which…

II Review I Constants I Periodic Table MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your Part A e Тext. One of the nuclides in spent nuclear fuel is U-235, an alpha emitter with a half-life of 703 million years. How long would it take for the amount of U-235 to reach 1/2 of its initial amount? ? t = 2.11 • 10° million years Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

II Review I Constants I Periodic Table MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your Part A e Тext. One of the nuclides in spent nuclear fuel is U-235, an alpha emitter with a half-life of 703 million years. How long would it take for the amount of U-235 to reach 1/2 of its initial amount? ? t = 2.11 • 10° million years Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

part A 1. Concentration of Known NiCl2 Stock Solution ___500________ mM Tube Number Blank #1 #2 #3 #4 #5 2. Volume of Known NiCl2 Stock Solution Pipetted Into Tube 0.00 mL 1.50 mL 3.00 mL 4.50 mL 6.00 mL 7.50 mL 3. Volume of Distilled Water Pipetted Into Tube 11.00 mL 9.50 mL 8.00 mL 6.50 mL 5.00 mL 3.50 mL 4. Total Volume of Solution In Tube 11.00 mL 11.00 mL 11.00 mL 11.00 mL 11.00 mL 11.00 mL 5. Diluted Concentration of NiCl2 In Tube ----------- 68.2 mn 136mn 204mn 273mn 341mn 1. Equation for the Best-Fit Straight Line Y=3822x+4.7446 2. Absorbance at λmax for Diluted Unknown 0.87 3. Concentration of NiCl2 in Diluted Unknown 25.693 mM Determine the dilution factor for your diluted unknown U1 based on how you prepared the solutions in Part A. Record this on your report sheet in Part D #4.
helpp??
Where did the 180 come from
Can someone please help?
Assignment Score: 45.9% Question 12 of 19 What concentration of CI re [CI¯] =
Pinde cerrect Pndult Br Noost Ph Ph noreaction Ph
Can someone check to see if #9 through #12 are correct with the information provided
A chemist prepares a solution of silver perchlorate (AgCIO, by measuring out 1.07 kg of silver perchlorate into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver perchlorate solution. Round your answer to 3 significant digits. I mol L 10 Ar Explanation Check 2022 McGraw Hill LLC All Rights Reserved. Terms of Use Privacy Center ACcessibility 80 F 8.37 AM Cloudy 令 4/02022 DELL F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScr Insert Delete PgUp PgDn Hom %23 V. Num Lock Backspace | 3 4 8 %24
To which sample solution the spike will be add? the distillate>130C the mass standard the distilled <130C