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
lawyer [7]
3 years ago
9

The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay of the carbon- in a tiny samp

le of an artifact made of wood from an archeological dig is measured to be . The activity in a similar-sized sample of fresh wood is measured to be . Calculate the age of the artifact. Round your answer to significant digits.

Chemistry
1 answer:
EleoNora [17]3 years ago
6 0

The question is incomplete. The complete question is:

The half-life for the decay of carbon-14 is 5.73x10^3 years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of woodfrom an archeological dig is measured to be 2.8x10^3 Bq. The activity in a similiar-sized sample of fresh wood is measured to be 3.0x10^3 Bq. Calculate the age of the artifact. Round your answer to 2 significant digits.

Answer:

570 years

Explanation:

The activity of the fresh sample is taken as the initial activity of the wood sample while the activity measured at a time t is the present activity of the wood artifact. The time taken for the wood to attain its current activity can be calculated from the formula shown in the image attached. The activity at a time t must always be less than the activity of a fresh wood sample. Detailed solution is found in the image attached.

You might be interested in
What is the compound name for the ion chemical formula AgBr?
Gnom [1K]

Answer:

Silver bromide.

Explanation:

4 0
3 years ago
A solution is prepared at that is initially in benzoic acid , a weak acid with , and in sodium benzoate . Calculate the pH of th
Kisachek [45]

Answer:

pH=4.1

Explanation:

Hello,

In this case, for a concentration of 0.42 M of benzoic acid whose Ka is 6.3x10⁻⁵ in 0.33 M sodium benzoate, we use the Henderson-Hasselbach equation to compute the required pH:

pH=pKa+log(\frac{[base]}{[acid]} )

Whereas the concentration of the base is 0.33 M and the concentration of the acid is 0.42 M, thereby, we obtain:

pH=-log(Ka)+log(\frac{[base]}{[acid]} )\\\\pH=-log(6.3x10^{-5})+log(\frac{0.33M}{0.42M} )\\\\pH=4.1

Regards.

3 0
3 years ago
Students in science are studying solutions and the dissolving rate of solids. One group was given some instant lemonade mix to
UkoKoshka [18]

Answer: A E D C

Explanation:

7 0
3 years ago
J.j thomson a british physicist was the first to identify the
Shalnov [3]
<span>J.j thomson a british physicist was the first to identify the electron in 1987</span>
5 0
3 years ago
A little bigger than the diameter of the cylinder, _________ stops pressurized fuel air mixture from leaking between the cylinde
Vladimir [108]

The correct term here is a "piston ring."

7 0
3 years ago
Other questions:
  •  A reaction container holds 5.77 g of P4 and 5.77 g of O2.
    6·1 answer
  • A first-order reaction has a half-life of 29.2 s . how long does it take for the concentration of the reactant in the reaction t
    7·1 answer
  • Please help me with letter a question
    14·1 answer
  • After gathering sufficient evidence to generate an _____for a nutrient, that value is used to establish an RDA for the same nutr
    6·1 answer
  • The force that pushes electrons through a wire is called gravitational force 1 . Static force 2 magnetic force 3 electrical pote
    15·1 answer
  • What is the HONC 1234 rule
    5·1 answer
  • An atom that contains 22 protons,
    14·2 answers
  • A Chemical Reactions Takes Place When
    6·2 answers
  • What general trend do you observe in the periodic table of the Atomic Radius?
    5·1 answer
  • Indicate whether each of the following gas liquid solid 1: the neon atoms in living display don't interact with other
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!