What is the formula mass of 2-butene, #C_4H_8#?
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The formula mass of 2-butene (C₄H₈) is calculated by adding the atomic masses of all the atoms in the molecule.
Carbon (C): 4 atoms × atomic mass of carbon = 4 × 12.01 = 48.04 g/mol Hydrogen (H): 8 atoms × atomic mass of hydrogen = 8 × 1.01 = 8.08 g/mol
Formula mass of C₄H₈ = 48.04 g/mol (for carbon) + 8.08 g/mol (for hydrogen) = 56.12 g/mol
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To calculate the formula mass of 2-butene (C₄H₈), you sum the atomic masses of all the atoms in the molecule.
The atomic masses are:
- Carbon (C): 12.01 grams per mole
- Hydrogen (H): 1.008 grams per mole
There are four carbon atoms and eight hydrogen atoms in 2-butene.
Formula mass of 2-butene (C₄H₈) = (4 × atomic mass of carbon) + (8 × atomic mass of hydrogen) = (4 × 12.01) + (8 × 1.008) = 48.04 + 8.064 = 56.104 grams per mole
Therefore, the formula mass of 2-butene (C₄H₈) is approximately 56.104 grams per mole.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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