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The density of a pure substance is its mass per unit volume. The density of ethylene glycol has been measured to be 1097.gL. Calculate the mass of 405.mL of ethylene glycol. Be sure your answer has a unit symbol and the correct number of significant digits.

Sagot :

Answer:  The mass of 405 mL of ethylene glycol is 444.3 g.

Explanation:

Density is defined as the mass contained per unit volume.

[tex]Density=\frac{mass}{Volume}[/tex]

Given :

Density of the ethylene glycol= [tex]1097g/L[/tex]

Volume of the ethylene glycol= [tex]405ml[/tex]  = 0.405 L   (1L=1000ml)

Mass of  the ethylene glycol = ?

Putting in the values we get:

[tex]1097g/L=\frac{x}{0.405L}[/tex]

[tex]x=444.3g[/tex]

Thus the mass of 405 mL of ethylene glycol is 444.3 g

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