How many moles of PbNO3 are there in 4.5 g of PbNO3?

0.017 moles PbNO₃

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 4.5 g PbNO₃

[Solve] moles PbNO₃

Step 2: Identify Conversions

[PT] Molar Mass of Pb - 207.2 g/mol

[PT] Molar Mass of N - 14.01 g/mol

[PT] Molar Mass of O - 16.00 g/mol

Molar Mass of PbNO₃ - 207.2 + 14.01 + 3(16.00) = 269.21 g/mol

Step 3: Convert

Step 4: Check

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

0.016716 moles PbNO₃ ≈ 0.017 moles PbNO₃

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