Asked by Anonymous

Given that the mean relative atomic mass of chlorine contains two isotopes of mass number 35 and 37 what is the percentage composition of the isotopes of mass number 37
Answered by oobleck
if x% is Cl37, then
x*37 + (1-x)*35 = 35.453
Answered by DrBob222
I want to be picky here. With the equation as stated, then x = FRACTION that is Cl 37 and 1-x = FRACTION that is Cl 35. If we want x% to be Cl 37, then the equation should be x*37 + (100 - x)*35 = 3545.3. This latter equation gives the percentage whereas the initial equation gives the fraction.
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