ArtisticGhost
ArtisticGhost ArtisticGhost
  • 17-11-2020
  • Chemistry
contestada

In 5.49 seconds, 1.80 g of argon-35 decay to leave only 0.225 g. What is the half-life of argon-35?​

Respuesta :

Neetoo
Neetoo Neetoo
  • 17-11-2020

Answer:

Half life = 1.83 sec

Explanation:

Given data:

Total amount of Ar-35 = 1.80 g

Amount left after 5.49 sec = 0.225 g

Half life of Ar-35 = ?

Solution:

At time zero = 1.80 g

At first half life = 1.80 g/2 = 0.9 g

At 2nd half life = 0.9 g/2 = 0.45 g

At 3rd half life = 0.45 g/2 = 0.225 g

Half life:

Half life = Time elapsed / number of half lives

Half life = 5.49 sec / 3

Half life = 1.83 sec

Answer Link

Otras preguntas

3(4f-3)+8= -1 +12j How do I solve this
What pronoun best completes this sentence? The English are not known for _____ cooking.
which planet is about 1/10 of the distance Uranus is from the sun?
The United States produces more than _________ of the world’s genetically modified crops. A. one-fourth B. one-third C. one-half D. two-thirds
which of the following is an example of how a scientist might use a model? a. a stopwatch is used to time the rate of a chemical reaction. b. a microscope is us
ok 4/12 is less than 4/6 right ?
whats the difference compares a hypothesis and a theory?
what is 5 7/10 - 5/18
The number of protons in an atom is called the what???
WRITE 4.625 AS A MIXED NUMBER IN SIMPLEST FORM