1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Korolek [52]
3 years ago
15

A 2,000g of C-14 is left to decay radioactively. The half-life of Carbon-14 is approximately 5,700 years. What percentage of the

sample will remain after 17,100 years?
Chemistry
2 answers:
dsp733 years ago
4 0
Answer is: 12,6% (1/8) <span>percentage of the sample will remain.
</span>c₀ - initial amount of C-14.<span>
c - amount of C-14 remaining at time.
t = 5700</span> y.<span>
First calculate the radioactive decay rate constant λ:
λ = 0,693 ÷ t = 0,693 ÷ 5700</span> y = 0,000121 1/y = 1,21·10⁻⁴ y.
c = c₀·e∧-λ·t.
c = 2000 · e∧-(0,000121 1/y · 17100 y).
c = 252 g.
ω = 252 g ÷ 2000 g = 0,126 = 12,6%.
<span>

</span>
mart [117]3 years ago
3 0

1/8 when using usatestprep

You might be interested in
When coke burns in air then evolved gas is​
Arturiano [62]

Answer:

Explanation:

Carbon (coke) burns in air to form carbon dioxide gas.

(i) C(s) + O2 ↑= CO2 ↑

7 0
4 years ago
Predict the sign of enthalpy for reaction f+f=f2
guajiro [1.7K]
6+6=12


is your answer
6 0
3 years ago
An atom has 5 protons, 4 electrons, and 5 neutrons. Which
Likurg_2 [28]

Answer:

i think the answer is C

Explanation:

not sure plsss dont bash im a beginner

3 0
3 years ago
Read 2 more answers
Which theory describes the motion of and force driving earth’s plates?
swat32

The theory that describes the motion and force driving earth's plates is Plate tectonics

Explanation:

Plate tectonics states that the outer shell of the Earth is divided into plates that glide and move over the mantle which is the surface of the earth.

The mantle is the rocky inner layer above the core of the Earth.

Plate tectonics helped the geologists to explain how continents could move around the planet.

There are 9 major plate tectonics , namely North American, Pacific, Eurasian, Australian, African, Indo - Australian,Indian South American and Antarctic. These plates have been named after the land form found on them.

7 0
3 years ago
Use the geometric mean (leg) theorem. What is the
mars1129 [50]

Answer:

2/70

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • a search team is hoping to recover cargo from a sunken ship.which section of the ocean floor would be the hardest to recover the
    12·1 answer
  • Which common mineral is most resistant to both chemical and mechanical weathering?
    11·1 answer
  • ANSWER ASAP
    7·1 answer
  • An aluminum can weighing 10 g absorbs 106.8 J of heat and warms by 12 degrees C. What is the specific heat of the aluminum can?
    14·1 answer
  • Calculate the molarity of a NaOH solution that is prepared by diluting 100mL of 0.20M NaOH with 150mL of H2O.
    7·1 answer
  • Write a procedure for how you would measure the effect of reactant concentration on the reaction rate
    11·1 answer
  • If the H3O is 4.950 x 10-12 what is the ph?
    13·1 answer
  • Every element has a unique amount of
    8·1 answer
  • Please help quick<br> Alkali means ___.
    14·1 answer
  • What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in t
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!