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How many moles are present in 300.0 mL of acetone, given that the specific gravity of acetone is 0.784.

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The number of moles of acetone is 4.1 moles.

What is the number of moles of acetone?

Let us recall that specific gravity refers to the ratio of the density of a substance to the density of water. Also noting that the density of water has been set to 1 g/mL, the density of the acetone solution is 0.784 g/mL.

Density = mass/volume

mass = Density * volume

mass = 0.784 g/mL *  300.0 mL

= 235.2 g

Number of moles = mass/molar mass

Molar mass of acetone = 58 g/mol

Number of moles of acetone = 235.2 g/ 58 g/mol

= 4.1 moles

Learn ore about density:https://brainly.com/question/15164682

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