ZuoTi.Pro
Question

Please help. I figured out the first part but don't know the second part. Suppose you...

Please help. I figured out the first part but don't know the second part.

Suppose you start with a sample with 4.150×108 nuclei of a particular isotope.

This isotope has a half-life of 446 s. What is the decay constant for this particular isotope?

How many nuclei remain after 1.13×103 s?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

e2 t z Lime 3

0 0
Add a comment
Know the answer?
Add Answer to:
Please help. I figured out the first part but don't know the second part. Suppose you...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Suppose you start with a sample with 2.900×108 nuclei of a particular isotope. This isotope has...

    Suppose you start with a sample with 2.900×108 nuclei of a particular isotope. This isotope has a half-life of 374 s. a) What is the decay constant for this particular isotope? b) How many nuclei remain after 797 s? c) What is the activity of the sample at the beginning of the experiment?

  • Figured out the first part and can't figure out the second - please help and show...

    Figured out the first part and can't figure out the second - please help and show process! Part A What must the charge (sign and magnitude) of a particle of mass 1.43 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 680 N/C? Use 9.81 m/s2 for the magnitude of the acceleration due to gravity. View Available Hint(s -2.06x10-5 C Correct Part B What is the magnitude of an electric field in which...

  • Help with second question please! I have figured out the first one and provided the answer....

    Help with second question please! I have figured out the first one and provided the answer. a) Suppose that in the simple circuit the resistance is 8 Ω and the inductance is 2 H. If a battery gives a constant voltage of 60 V and the switch is closed when t= 0 so the current starts with I(0) = 0, what is the limiting value of the current? Answer: 15/2 Amps b) Suppose that the resistance and inductance remain the...

  • The half-life of 52Mn is 5.59 days. (a) Convert the half-life to units of seconds. (b)...

    The half-life of 52Mn is 5.59 days. (a) Convert the half-life to units of seconds. (b) What is the decay constant (in s−1) for this isotope? (c) Suppose a sample of 52Mn has an activity of 0.510 µCi. What is this activity expressed in the SI unit of becquerels (Bq)? (d) How many 52Mn nuclei are needed in the sample in part (c) to have the activity of 0.510 µCi? E. Now suppose that a new sample of 52Mn has...

  • I need some help figuring this one out and how to do it. 14.) One isotope of the radioactive element thorium is 227th,...

    I need some help figuring this one out and how to do it. 14.) One isotope of the radioactive element thorium is 227th, which undergoes a-decay according to the equation: 227Th → 223Ra + a. If the half-life of 227Th is 18.7 days, what is the rate of a- particle production, in a.s., from a sample of 510 ug of 22 Th? 227Th 227.0277 g.mol a. 5.0x1016 a:s! b. 5.8x1011 a.s -1 c. 5.8*108 a-s-1 d. 1.0x1012 a.s?

  • The first answer is correct, I just don't know how to get the second part. Please...

    The first answer is correct, I just don't know how to get the second part. Please help me Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00 W/m^2. If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the...

  • please help me out with these questions, i need help. thank you in advance!! Question 2...

    please help me out with these questions, i need help. thank you in advance!! Question 2 (2 points) The radioactive decay of an isotope was measured for 1 week. The kinetics were modeled using a first order integrated rate law plot, such that In[amount of radioactive isotope remaining] was plotted on the y-axis and time was plotted on the x-axis. The data set was modeling using a linear equation, y=-0.542-1.92. In blank # 1, determine the rate constant for the...

  • please help I really dont know what the second M is suppose to be, but i...

    please help I really dont know what the second M is suppose to be, but i want to say its the M of the ClO Part A Find CO32 of a 0.040 M M carbonic acid solution. Express your answer using two significant figures. VOAED ? CO,2 1- Request Answer Submit Part A Find CO32 of a 0.040 M M carbonic acid solution. Express your answer using two significant figures. VOAED ? CO,2 1- Request Answer Submit

  • The first-order rate constant for the decomposition of N2O5, 2N2O5(g)→4NO2(g)+O2(g) at 70∘C is 6.82×10−3 s−1. Suppose...

    The first-order rate constant for the decomposition of N2O5, 2N2O5(g)→4NO2(g)+O2(g) at 70∘C is 6.82×10−3 s−1. Suppose we start with 2.60×10−2 mol of N2O5(g) in a volume of 2.3 L Part A How many moles of N2O5 will remain after 4.0 min ? Part B How many minutes will it take for the quantity of N2O5 to drop to 1.8×10−2 mol ? Part C What is the half-life of N2O5 at 70∘C?

  • The first-order rate constant for the decomposition of N2O5, 2N2O5(g)→4NO2(g)+O2(g) at 70∘C is 6.82×10−3 s−1. Suppose...

    The first-order rate constant for the decomposition of N2O5, 2N2O5(g)→4NO2(g)+O2(g) at 70∘C is 6.82×10−3 s−1. Suppose we start with 2.50×10−2 mol of N2O5(g) in a volume of 1.8 L . Part A: How many moles of N2O5 will remain after 4.0 min ? Part B: How many minutes will it take for the quantity of N2O5 to drop to 1.9×10−2 mol ? Part C: What is the half-life of N2O5 at 70∘C?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT