Percentage of water in popcorn

18) Find the average atomic mass of krypton using the data below: Isotope Mass (AMU) Percentage Abundance (%) 77.920 0.350 79.916 2.27 81.913 11.56 82.914 11.55 83.912 56.90 85.911 17.37 19) Calculate the average atomic mass of chromium, given the … ................
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