A(n) _____________ is a mixture of fuel and oxygen for which the masses of these two components are exactly those needed for com
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Answer:
0.124 mol Ag
General Formulas and Concepts:
<u>Atomic Structure</u>
- Moles
<u>Stoichiometry</u>
- Using Dimensional Analysis
Explanation:
<u>Step 1: Define</u>
[Given] 7.49 × 10²² atoms Ag
[Solve] mol Ag
<u>Step 2: Identify Conversions</u>
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Step 3: Convert</u>
- [DA] Set up:
- [DA] Divide [Cancel out units]:
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
0.124377 mol Ag ≈ 0.124 mol Ag
Topic: AP Chemistry