A mixture of methane (CH₄) and butane (C₄H₁₀) at one atmosphere pressure and 25°C has a density of 1.269 g/L. Assuming ideal behavior, what is the mass in grams of carbon that are in 1 liter of the mixture?

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solid ice forms on leaves.

water droplets form on grass.

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water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.