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Sagot :
Answer:
48 g C
Explanation:
To find the grams, you need to (1) convert atoms to moles (using Avogadro's Number) and then (2) convert moles to grams (using atomic mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 2 sig figs to match the sig figs of the given value.
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
Atomic Mass (C): 12.011 g/mol
2.4 x 10²⁴ atoms C 1 mole 12.011 g
----------------------------- x -------------------------------- x --------------- = 48 g C
6.022 x 10²³ atoms 1 mole
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