The subscript for H is 10.
The formula for butanol is C₄HₓO.
x = (6.0 × 10²⁴ H atoms/1 mol butanol)
× (1 mol butanol/6.022 × 10²³ molecules butanol)
= 10 H atoms/molecule butanol
∴ The formula for butanol is C₄H₁₀O.
The subscript for the hydrogen atom in butanol is 10. So, the chemical formula is [tex]\bold {C_4 H_1_0 O }[/tex].
Assume the subscript for Hydrogen is X,
then, the formula for butanol is C₄HₓO.
Given here,
Number of atoms in one mole of butanol = 6.0 × 10²⁴
1 mole mole of Butanol contains 6.02 × 10²³
Thus
[tex]\bold {X = \dfrac {6.0\times 10^{24}}{6.02 \times 10^{23}} }\\\\\bold {X = \approx 10}[/tex]
Therefore, the subscript for the hydrogen atom in butanol is 10.
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