SOMEONE HELP ME 1. How many grams of C are present in 4.86 grams of carbon dioxide ? grams C. 2. How many grams of c

Question

SOMEONE HELP ME
1. How many grams of C are present in 4.86 grams of carbon dioxide
?
grams C.
2. How many grams of carbon dioxide contain 1.73 grams of O ?
grams carbon dioxide.

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Xavia 4 years 2021-08-04T22:57:15+00:00 1 Answers 17 views 0

Answers ( )

  1. thnahdat
    0
    2021-08-04T22:58:16+00:00
    Reply

    Answer:

    1. 1.33 gram of carbon

    2. 2.38g of carbon dioxide

    Explanation:

    From the given information:

    Total amount of CO₂ = 4.86 grams

    Atomic mass of C = 12 g/mole

    molar mass of CO₂ = 44 g/mole

    ∴

    The mass of the Carbon (C) in grams is:

    = Total\ amount \ of \ CO_2 \times \dfrac{12 \ g/mol}{44 \ g/mol}

    = 4.86 \ g \times \dfrac{12 \ g/mol}{44 \ g/mol}

    = 1.33 gram of carbon

    2.

    Here, the total amount of CO₂ = unknown

    Atomic mass of O₂ = 32 g/mole

    molar mass of CO₂ = 44 g/mole

    amount of oxygen = 1.73 g

    ∴

    The mass of CO₂ = Total \ amount \ of \ O_2 \times \dfrac{44 \ g/mol}{32\ g/mol}

    =1.73 \times \dfrac{44 \ g/mol}{32\ g/mol}

    = 2.38 g of carbon dioxide

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