Question

Cl has two stable element Cl35 and Cl37 with atomic mass 34.968 and 36.956 the avarage at mass is 35.453 calculate percentage abundance ​

Answer 1

Answer:Here Is Your Answer. And plz dhruv post this type of questions plz plz plz plz I Rutu request u

Explanation:(X*34.986+Y*36.956)/(X+Y)=35.453

35.453 equals to the average mass of CL-35 with concentration X and CL-37 with concentration Y. But that's messy and hard to work with.

Subtract CL-35 's mass from every mass. This allows us to remove it from the equation,which also let's us skip averaging because we're also working with CL-37 and leaves us with following :Y*1.988=0.485

Now determine Y, which is your CL-37 concentration. Note that this give fraction not percentage

Hope it will help you dhruv ☺️☺️