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Taya2010 [7]
3 years ago
9

Sulfur reacts with oxygen to form sulfur dioxide (so2(g), hf = –296.8 kj/mol) according to the equation below. what is the entha

lpy change for the reaction? use . –593.6 kj –296.8 kj 296.8 kj 593.6 kj
Chemistry
2 answers:
Varvara68 [4.7K]3 years ago
6 0
The answer is B <span>-296.8 KJ</span>
Dvinal [7]3 years ago
4 0
B...................
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Answer:

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General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

47.7 g Mg

<u>Step 2: Identify Conversions</u>

Avogadro's Number

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<u>Step 3: Convert</u>

<u />47.7 \ g \ Mg(\frac{1 \ mol \ Mg}{24.31 \ g \ Mg} )(\frac{6.022 \cdot 10^{23} \ particles \ Mg}{1 \ mol \ Mg} ) = 1.18161 × 10²⁴ particles Mg

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

1.18161 × 10²⁴ particles Mg ≈ 1.18 × 10²⁴ particles Mg

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