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Alexus [3.1K]
3 years ago
11

What is the mass of 2.23 x 1023 atoms of sulfur?

Chemistry
1 answer:
Minchanka [31]3 years ago
5 0

Answer:

11.9 g S

General Formulas and Concepts:

<u>Chem</u>

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

Explanation:

<u>Step 1: Define</u>

2.23 × 10²³ atoms S

<u>Step 2: Define conversions</u>

Avogadro's Number

Molar Mass of S - 32.07 g/mol

<u>Step 3: Dimensional Analysis</u>

<u />2.23 \cdot 10^{23} \ atoms \ S(\frac{1 \ mol \ S}{6.022 \cdot 10^{23} \ atoms \ S} )(\frac{32.07 \ g \ S}{1 \ mol \ S} ) = 11.8758 g S

<u>Step 4: Check</u>

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

11.8758 g S ≈ 11.9 g S

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