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MA_775_DIABLO [31]
3 years ago
8

Which of the following chemical formulas contains the most molecules?

Chemistry
1 answer:
maw [93]3 years ago
4 0
C. 2Fe2O3 would be the correct answer!
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6.0 L

Explanation:

Use the dilution equation M1V1 = M2V2

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Answer:

B. 0.2.

Explanation:

  • We can use the relation:

<em>n = mass/molar mass</em>

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

<em>∴ n = mass/molar mass = </em>(20 g)/(100.0869 g/mol) <em>= 0.1998 ≅ 0.2 mol.</em>

<em></em>

<em>So, the right choice is: B. 0.2.</em>

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