Question

How many moles are in 1,459 grams of Na?

Answer 1

63.46 mol Na

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

Atomic Structure

• Reading a Periodic Table
• Using Dimensional Analysis

Step-by-step explanation:

Step 1: Define

1459 g Na

Step 2: Identify Conversions

Molar Mass of Na - 22.99 g/mol

Step 3: Convert

1. Set up:
   `\displaystyle 1459 \ g \ Na((1 \ mol \ Na)/(22.99 \ g \ Na))`
2. Multiply/Divide:
   `\displaystyle 63.4624 \ mol \ Na`

Step 4: Check

Follow sig fig rules and round. We are given 4 sig figs.

63.4624 mol Na ≈ 63.46 mol Na