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  • Calculating Lead(II) Oxide Production from Lead(II) Carbonate Decomposition
    You're asking about the decomposition of lead(II) carbonate (PbCO₃) to produce lead(II) oxide (PbO) and carbon dioxide (CO₂). Here's how to solve the problem:

    1. Write the Balanced Chemical Equation:

    PbCO₃(s) → PbO(s) + CO₂(g)

    2. Calculate the Molar Masses:

    * PbCO₃: 207.2 g/mol (Pb) + 12.01 g/mol (C) + 3 * 16.00 g/mol (O) = 267.21 g/mol

    * PbO: 207.2 g/mol (Pb) + 16.00 g/mol (O) = 223.2 g/mol

    3. Use Stoichiometry to Find the Mass of PbO:

    * Convert grams of PbCO₃ to moles:

    2.50 g PbCO₃ * (1 mol PbCO₃ / 267.21 g PbCO₃) = 0.00936 mol PbCO₃

    * Use the mole ratio from the balanced equation:

    1 mol PbCO₃ : 1 mol PbO

    Therefore, 0.00936 mol PbCO₃ will produce 0.00936 mol PbO.

    * Convert moles of PbO to grams:

    0.00936 mol PbO * (223.2 g PbO / 1 mol PbO) = 2.09 g PbO

    Answer: 2.09 grams of lead(II) oxide will be produced by the decomposition of 2.50 grams of lead(II) carbonate.

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