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21 December, 03:20

CS2 is reacted with oxygen according to the following equation. What mass of O2 would react completely with 385 grams of CS2?

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  1. 21 December, 06:53
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    There will react 485.76 grams of O2

    Explanation:

    Step 1: Data given

    Mass of CS2 = 385 grams

    Molar mass CS2 = 76.14 g/mol

    Molar mass of O2 = 32 g/mol

    Step 2: The balanced equation

    CS2 (s) + 3O2 (g) → CO2 (g) + 2SO2 (g)

    Step 3: Calculate moles of CS2

    Moles CS2 = mass CS2 / molar mass CS2

    Moles CS2 = 385 grams / 76.14 g/mol

    Moles CS2 = 5.06 moles

    Step 4: Calculate moles of O2

    For 1 mol of CS2 we need 3 moles of O2 to produce 1 mol of CO2 and 2 moles of SO2

    For 5.06 moles of CS2, we need 3 * 5.06 = 15.18 moles of O2

    Step 5: Calculate mass of O2

    Mass O2 = moles O2 * molar mass O2

    Mass O2 = 15.18 moles * 32.00 g/mol

    Mass O2 = 485.76 grams O2

    There will react 485.76 grams of O2
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