How many moles are in 16.94 g of H2O?

0.9401 mol H₂O

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

16.94 g H₂O

Step 2: Identify Conversions

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol

Step 3: Convert

= 0.940067 mol H₂O

Step 4: Check

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

0.940067 mol H₂O ≈ 0.9401 mol H₂O

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