How many grams of carbon atoms are present in a sample of C3H8 if there are 4.70 moles of hydrogen atoms in the sample

Question

How many grams of carbon atoms are present in a sample of C3H8 if there are 4.70 moles of hydrogen atoms in the sample

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Ngọc Diệp 7 months 2021-07-18T11:49:29+00:00 1 Answers 20 views 0

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    2021-07-18T11:51:20+00:00

    Answer:

    21.12 grams

    Explanation:

    Using the given number of hydrogen moles, we calculate the number of carbon atoms, keeping in mind that there are 3 carbon moles per hydrogen mol:

    4.70 mol H * \frac{3molC}{8molH} = 1.76 mol C

    Finally we convert 1.76 moles of carbon into grams, using its molar mass:

    1.76 mol * 12 g/mol = 21.12 g

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