ldjdaa29 ldjdaa29

30-05-2020
Chemistry

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The mass of single iridium atom is 3.19*10^-22 grams how many iridium atoms would be in 56.4 milligrams of iridium

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dunjaikonic077 dunjaikonic077

30-05-2020

Answer:162626363637272772.8766

Explanation:

13322/726513/272727-277373

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eugenegonz50 eugenegonz50

30-05-2020

First convert milligrams to grams by dividing it by 1000. This gets us 0.0564 grams of iridium. Since we know the ratio between one iridium atom and grams is 1 atom/3.19*10^22 grams, use that ratio as the conversion factor in dimensional analysis. 0.0564 grams * (1 atom/3.19*10^22 grams). Grams cancel out and we are left with 1.77*10^20 atoms.

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