What is the molar mass of the isotope strontium-87 (#""^(87) Sr#)?

1 Answer
Sep 25, 2017

Answer:

Is it not #87.0*g*mol^-1#?

Explanation:

This site tells me that #""^87Sr# is approx. 7.00% abundant. The molar mass quoted on the Periodic Table is #87.62*g*mol^-1#. As always this molar mass is the weighted average of the individual isotopic masses. #""^88Sr#, at approx. 83% abundance, is the major isotope.