The number of carbon atoms in 71.0 grams of carbonic acid?

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  • 8 years ago
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    carbonic acid = H2CO3

    1mol H2CO3 contains 1 mol C atoms

    Molar mass H2CO3 = 62.0 g/mol

    71g H2CO3 = 71/62 = 1.145 mol H2CO3

    You have 1.145 mol C atoms

    1 mol C atoms = 6.022*10^23 C atoms

    1.145 mol C atoms = 1.145*6.022*10^23 C atoms = 6.90*10^23 C atoms.

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