Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. calculate the activity of 30 g of radium-226 in bq

Calculate the activity of 30 g of radium-226 in Bq and mCi. ( The half-life of...

Free

60.1K

Verified Solution

Question

Chemistry

Calculate the activity of 30 g of radium-226 in Bq and mCi. (The half-life of radium-226 is 1600yeras.) Ci ( = 3.7times10^10Bq)

Answer & Explanation Solved by verified expert
4.0 Ratings (740 Votes)

Atomic mass of radium is 226.

226g of radium contain avogadro number (6.022X1023  ) of radium atoms.

30g contain (6.022 X 1023 ​/226) X 30 = 8 X 1022 ​atoms.

Activity is related to half-life as             Activity= 0.693 X N/ T1/2 Bq

Substituting, Activity = 0.693 X 8 X 1022 ​/ (1600 X 365 X 24 X 60 X 60)

                                 = 1.76 X 1015 Bq

Now to express in Ci, Activity = 1.76 X 1015 ​/ 3.7 X 1010 ​Ci

                                              = 4.756 X 10 4​Ci

                                               = 4.756 X 107 mCi
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Civil Engineering
1.2K views

What is the purpose of instrumentation of deep excavation projects? Explain briefly the following instruments and...

General Management
1.2K views

If you were to take the time, individually or collectively to ritually honor and reflect on...

General Management
1.2K views

Are profitable ethical businesses profitable because they are ethical, or are they ethical because it can...

Biology
1.2K views

To know what a peer-reviewed journal article covers, which of the following would you do?Look...

Algebra
1.2K views

If the formula y 2 is changed by adding four as shown in red below...

Accounting
1.2K views

How might skimming have occurred at the register? Select all that apply. options: After hours...

Accounting
1.2K views

Help needed with calculations part a is not $26,542 and part b is...

Accounting
1.2K views

Cul de las siguientes declaraciones con respecto a las ganancias por accin (EPS) es incorrecta?...

Accounting
1.2K views

in excel, create a One-Variable Data Table that will take the ODD numbers from 1...

Accounting
1.2K views

please help Cemyoting Mrtivity Raries cinvernarysturnover at Awerapg dovin inventery e....

Finance
1.2K views

could y give me the function also, plzz ...

Finance
1.2K views

Which of the following is FALSE? A debenture is a bond that has no collateral....