Answer: If she used rounding properly, she would have gotten -25 x 10 = -250
Explanation:
0.206 moles will contain 0.206 moles x 6.022 × 10^23 atoms which is equivalent to 1.240 x 10^23 atoms.
<h3>Total atoms in a compound</h3>
Given the following parameters
- Mass of Cu2s = 32.8 grams
Get the number of moles
Moles = 32.8/159.16 g/mol
Moles of Cu2S = 0.240moles
Since 1 molecule of atom = 6.02 * 10^23 molecules
Hence 0.206 moles will contain 0.206 moles x 6.022 × 10^23 atoms which is equivalent to 1.240 x 10^23 atoms.
Learn more on molecules of compound here: brainly.com/question/473667
Answer:
A career assessment.
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