Ethanol is a common laboratory solvent and has a density of 0.789 g/ml. what is the mass, in grams, of 115 ml of ethanol

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. Therefore, the mass can be calculated as:

mass = 0.789 ( 115) = 9.0735 g ethanol

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Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

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