Respuesta :

Space

Answer:

[tex]\displaystyle 0.75 \ mol \ Cl_2[/tex]

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Chemistry

Stoichiometry

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

Step 1: Define

[RxN] 2Na + Cl₂ → 2NaCl

[Given] 34.485 g Na

Step 2: Identify Conversions

[RxN] 2 mol Na = 1 mol Cl₂

Molar Mass of Na - 22.99 g/mol

Step 3: Stoichiometry

  1. Set up:                              [tex]\displaystyle 34.485 \ g \ Na(\frac{1 \ mol \ Na}{22.99 \ g \ Na})(\frac{1 \ mol \ Cl_2}{2 \ mol \ Na})[/tex]
  2. Multiply/Divide:                [tex]\displaystyle 0.75 \ mol \ Cl_2[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 5 sig figs.

Since our final answer has 2 sig figs, there is no need to round.