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
Mrrafil [7]
3 years ago
12

A hypothetical element x has 3 naturally occurring isotopes: 41.20% of 21x, with an atomic weight of 21.016 amu, 50.12% of 22x,

with an atomic weight of 21.942 amu, and 8.68% of 24x, with an atomic weight of 23.974 amu. on the basis of these data, calculate the average atomic weight of element x. report your answer to two decimal places.
Chemistry
1 answer:
iogann1982 [59]3 years ago
4 0
The average atomic weight is calculated by adding up the products of the percentage abundance and atomic weight. In this item, we have the equation,

     A = (0.412)(21.016 amu) + (0.5012)(21.942 amu) + (0.0868)(23.974 amu)

Simplifying the operation will give us the answer of 21.74 amu.

<em>Answer: 21.74 amu</em>
You might be interested in
Nono noonobbvyubojikkhbjhbjhb mj bk n
Inga [223]
ヾ( ̄▽ ̄) Hello :)
ヾ( ̄▽ ̄) Hello :)
8 0
2 years ago
Why was Becquerel’s experiment a first step in discovering radioactivity?
galina1969 [7]
This was because the experiment showed that a substance could emit radiation even while it was not exposed to light.
5 0
3 years ago
Read 2 more answers
State two applications of simple distillation of separating mixture​
Salsk061 [2.6K]

Answer:

Purify drinking water of unwanted

  • chemicals and
  • minerals such as salt.

<em>Hope this helps! :D</em>

3 0
3 years ago
Which adaptation would be most likely to help a prey species avoid predators?
zhenek [66]
Camouflage adaptation will most likely help a prey avoid a predator . #answerwithquality #BAL
4 0
3 years ago
Read 2 more answers
Which represents the balanced nuclear equation for the beta plus decay of C-11?
slavikrds [6]
Nuclear reaction: ¹¹C → ¹¹B + e⁺(positron) + ve(electron neutrino).<span><span><span><span>
</span></span></span></span>Beta decay is radioactive decay<span> in which a beta ray and a neutrino are emitted from an atomic nucleus.
There are two types of beta decay: beta minus and beta plus. In beta minus decay, neutron is converted to a proton and an electron and an electron antineutrino and in beta plus decay, a proton is converted to a neutron and positron and an electron neutrino, so mass number does not change.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which component is missing from the process of cellular respiration? Glucose + Oxygen → Carbon Dioxide + ________ + Energy
    13·2 answers
  • 19. Which of the following statements is accurate? A. If an object is said to be decelerating, its velocity must be increasing.
    10·2 answers
  • Which is an example of human impact on climate changes?
    6·2 answers
  • Bromine has two isotopes: 50.69% of Bromine has a mass number of 79 while 49.31% of Bromine has a mass number of 81. Calculate t
    14·1 answer
  • A scientist analyzes four samples of compounds. He finds the first compound contains 10 grams of sodium, 211 grams of potassium,
    9·1 answer
  • During a lunar eclipse, the moon appears to be darkened because _______________ is casting a shadow on it.
    15·1 answer
  • Soil is best described as a pure substance or a mixture or a compound
    7·1 answer
  • Balance Cr2O3+Mg --&gt;Cr + MgO
    8·1 answer
  • 3500 g of 5.00°C water is heated until its temperature is 37.0°C. If the specific heat of
    8·1 answer
  • After air enter the body through the nose or mouth it then goes to the <br> what?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!