Chemistry, 10.09.2019 19:30 dantedelafuente

Hafnium has six naturally occurring isotopes: 0.16% of 174hf, with an atomic weight of 173.940 amu; 5.26% of 176hf, with an atomic weight of 175.941 amu; 18.60% of 177hf, with an atomic weight of 176.943 amu; 27.28% of 178hf, with an atomic weight of 177.944 amu; 13.62% of 179hf, with an atomic weight of 178.946 amu; . and 35.08% of 180hf, with an atomic weight of 179.947 amu. calculate the average atomic weight of hf. give your answer to three decimal places.

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Hafnium has six naturally occurring isotopes: 0.16% of 174hf, with an atomic weight of 173.940 amu;...