The atomic mass of element X is 33.42 amu. A 27.51-g sample of X combines with 88.90 g of another el

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The atomic mass of element X is 33.42 amu. A

Jul 26th, 2014

Thank you for the opportunity to help you with your question!

I think you didn't give the question properly.

I assume that X(27.51) is combining with the Y(88.90)

We use the ratio to solve this.

Atomic mass of X / 27.51-g of X = Y(amu) / 88.90-g of Y

Then, we get

          33.42 / 27.51     =   Y of atomic mass / 88.90

      Y's atomic mass = 88.90  *  33.42 / 27.51

     Y's amu = 107.998

     rounding to the nearest integer

   Y's amu = 108


the atomic mass of  Y =108

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 13th, 2015

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