63.5 grams of alcohol having a density of 0.818 g/ml are require for a chemical reaction. How many milliliters of alcohol should be measured out?

Respuesta :

mass = 63.5 grams

density = 0.818 g/mL

D = m / V

0.818 = 63.5 / V

V = 63.5 / 0.818

V = 77.628 mL

hope this helps!

77.6 mL of alcohol should be measured out.

To solve this question, we must understand what density is all about.

The density of a substance is simply defined as the mass of the subtance per unit volume of the subtance. Mathematically, the density of a subtance can be expressed as:

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

With the above formula, we can obtain the volume of alcohol that should be measured out. This can be obtained as illustrated below:

Mass of alcohol = 63.5 g

Deity of alcohol = 0.818 g/mL

Volume of alcohol =..?

[tex]Density = \frac{Mass}{Volume}\\\\0.818 = \frac{63.5}{Volume}[/tex]

Cross multiply

[tex]0.818 * Volume = 63.5[/tex]

Divide both side by 0.818

[tex]Volume = \frac{63.5}{0.818}[/tex]

Volume = 77.6 mL

Therefore, 77.6 mL of alcohol should be measured out.

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