Question Number 11389 by tawa last updated on 23/Mar/17

Given that the mean relative atomic mass of chlorine contain two isotopes  of mass numbe 35 and 37. What is the percentage of composition of the  isotope of mass number 37

Answered by sandy_suhendra last updated on 23/Mar/17

isotope of mass number 37=x%  isotope of mass number 36=(100−x)%  the mean relative atomic mass of Cl=35.5     35.5=(x/(100))×37 + ((100−x)/(100))×35  3550=37x+3500−35x  50=2x  x=25%

Commented bytawa last updated on 23/Mar/17

God bless you sir.