How many moles are in a 13.7g block of calcium?

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Chemistry

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How many moles are in a 13.7g block of calcium?

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Space Space · Answer 1 · 2025-03-31T04:39:41-04:00

Answer:

0.342 mol Ca

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Atomic Structure

Reading a Periodic Table

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

13.7 g Ca

Step 2: Identify Conversions

Molar Mass of Ca - 40.08 g/mol

Step 3: Convert

Set up: [tex]\displaystyle 13.7 \ g \ Ca(\frac{1 \ mol \ Ca}{40.08 \ g \ Ca})[/tex]
Multiply/Divide: [tex]\displaystyle 0.341816 \ mol \ Ca[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.341816 mol Ca ≈ 0.342 mol Ca