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Butane fuel is rarely pure butane but a mixture of butane and either propane, C3H8, or pentane, C5H12. According to the molecular formula you calculated in question #Q5, is your sample almost pure butane, a mixture of butane and propane, a mixture of butane and pentane, or some other mixture? Explain your rationale.
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Butane fuel is rarely pure butane but a mixture of butane and either propane, C3H8, or pentane, C5H1...
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