How many moles are equal to 9.03x10^24 molecules of water (H20)?

15.0 mol H₂O

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Chemistry

Atomic Structure

Reading a Periodic TableUsing Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:

Step 1: Define

9.03 × 10²⁴ molecules H₂O

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                               Multiply/Divide:                                                                                            

Step 4: Check

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

14.995 mol H₂O ≈ 15.0 mol H₂O

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium