How many moles are in 170 grams of H2O2? O 0.284 mol H202
O 0.385 mol H202
O 0.500 mol H2O2
O 0.730 mol H2O2
Please help!!!

5.0 mol H₂O₂

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 AnalysisExplanation:

Step 1: Define

170 g H₂O₂

Step 2: Identify Conversions

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O₂ - 2(1.01) + 2(16.00) = 34.02 g/mol

Step 3: Convert

Set up:                               Divide:                              

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

4.99706 mol H₂O₂ ≈ 5.0 mol H₂O₂

It’s the energy source of stars

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