A geologist uses a seismograph to record motions produced by an earthquake.
<u>Answer: </u>One isotope has a percentage abundance of 75.75 % and the percentage abundance of another isotope is 24.24%.
<u>Explanation:</u>
We are given the two stable isotopes of chlorine with their respective masses. The average atomic mass of chlorine is also given.
Average atomic mass of chlorine = 35.45 amu.
Let us assume the fractional abundance of one isotope be 'x' and the fractional abundance for another isotope will be (1 - x) because the total fractional abundance is always equal to 1.
Fractional abundance = x
Mass = 34.97 amu
Fractional abundance = 1 - x
Mass = 36.95 amu
The formula for the calculation of average atomic mass is given by:
![\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i](https://tex.z-dn.net/?f=%5Ctext%7BAverage%20atomic%20mass%20%7D%3D%5Csum_%7Bi%3D1%7D%5En%5Ctext%7B%28Atomic%20mass%20of%20an%20isotopes%29%7D_i%5Ctimes%20%5Ctext%7B%28Fractional%20abundance%7D%29_i)
Putting values in above equation, we get:
![35.45=34.97(x)+36.95(1-x)\\\\35.45=34.97x+36.95-36.95\\\\-1.5=-1.98x\\\\x=\frac{-1.5}{-1.98}=0.7575](https://tex.z-dn.net/?f=35.45%3D34.97%28x%29%2B36.95%281-x%29%5C%5C%5C%5C35.45%3D34.97x%2B36.95-36.95%5C%5C%5C%5C-1.5%3D-1.98x%5C%5C%5C%5Cx%3D%5Cfrac%7B-1.5%7D%7B-1.98%7D%3D0.7575)
![1-x=1-0.7575=0.2424](https://tex.z-dn.net/?f=1-x%3D1-0.7575%3D0.2424)
Converting these two fractional abundances into percentage abundances by multiplying it with 100.
![x=0.7575\times 100=75.75\%\\\\1-x=0.2424\times 100=24.24\%](https://tex.z-dn.net/?f=x%3D0.7575%5Ctimes%20100%3D75.75%5C%25%5C%5C%5C%5C1-x%3D0.2424%5Ctimes%20100%3D24.24%5C%25)
Hence, one isotope has a percentage abundance of 75.75 % and the percentage abundance of another isotope is 24.24%.
Answer:
haha
Explanation:
yea because my phat a22 is to lazy
I suppose the distance between two points and the time it takes.
Hope it helps!
:)
Answer:
it formed by nature and God, more specifcally, weather
Explanation: