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- 4.Please give handwritten answerWhy must atomic masses be weighted averages rather than conventional average values?12. The mass and % abundance for the four isotopes of chromium is given in the table below. Isotope Atomic Mass (u) % Abundance Cr-50 49.95 4.35 Cr-52 51.94 83.79 Cr-53 52.94 9.50 Cr-54 53.94 2.36 Calculate the average atomic mass of chromium. (Show your work.)
- - The M. New folder Genetic drift- Wikip. AAlgebra Foundation.. Image result fo - Molar Mass Wo... Insert Format Tools Add-ons Help Last edit. в I UA 5% Normal text Arial 14 Find the molar mass of the following chemicals: Sodium (Na) Calcium (Ca) Xenon (Xe) Gadolinium (Gd) Uranium (U) H,0 CO2 H,SO, NAOH C,H,O1 Pb(NO), CH18If element O has two isotopes and O -141 is 73% and O -162 is 27%, find the atomic mass. (Show work please and thank you in advance)X + ce/acellus_engine.html?ClassID=112101524 What is the estimated average atomic mass for this element? A. less than 86 amu C. exactly 88 amu D BI nternational Academy of Science. All Rights Reserved. Relative Abundance 100₁ 50- Unknown Element 81 83 85 87 89 Mass (M/e) B. 87-88 amu D. more than 88 amu Enter