Chemistry Atomic mass calculation

Question

The mass of each Wt isotope is measured relative to C−12 and tabulated below. Use the mass of C−12 to convert each of the masses to amu and calculate the atomic mass of Wt.

 

Isotope Mass
Wt-296 24.6624×Mass(12C)
Wt-297 24.7479×Mass(12C)
Wt-298 24.8315×Mass(12C)

Answer 1

24.6624 x 12.011 = 296.2201 amu

24.7479 x 12.011 = 297.2470 amu

24.8315 x 12.011 = 298.2511 amu

 

(296.2201 + 297.2470 +298.2511)/3 = 297.2394 atomic mass of Wt