How many particles of ZnCrO4 are present in a 4.5 mole sample?

2.7 × 10²⁴ particles ZnCrO₄

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 4.5 mol ZnCrO₄

[Solve] particles ZnCrO₄

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

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

2.7099 × 10²⁴ particles ZnCrO₄ ≈ 2.7 × 10²⁴ particles ZnCrO₄

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