Question

The density of ethyl alcohol is $ 0.789g/mL $ . What is the volume of $ 35.5g $ Ethyl alcohol?

Answer 1

Hint: The density of a material is a measurement of how densely it is packed together. It is defined as the mass per unit volume. For liquids volume is expressed in terms of $ mL $ .For solids it is expressed in terms $ {m^3} $ .

Complete answer:
Given:
Density: $ 0.789g/mL $
Mass: $ 35.5g $
To find: Volume of ethyl alcohol
Using the above formula;
Volume = $ \dfrac{Mass}{Density} $
Substituting the given values in the above formula;
Volume $ = \dfrac{{35.5g}}{{0.789g/mL}} $
On solving the above equation, we get,
Volume $ = 45mL $
Hence, the volume of ethyl alcohol is $ 45mL $ .

Additional Information:
Alcohols are chemical compounds in which a hydroxyl group replaces the hydrogen atom of an aliphatic carbon. As a result, an alcohol molecule is made up of two parts: one that contains the alkyl group and the other that has the functional group hydroxyl. They have a pleasant aroma. They have a distinct set of physical and chemical characteristics. Ethanol, often known as ethyl alcohol, $ {C_2}{H_5}OH $ , is a colourless, mildly poisonous chemical produced by fermentation that is employed as a solvent and as an antifreeze. Because it is popularly known as the alcohol contained in alcoholic beverages, ethanol is also known as ethyl alcohol.

Note:
A graduated cylinder can be used to directly measure the volume of a liquid. Various liquids have different size and mass molecules. The density of a liquid is determined by the mass and size of its molecules, as well as how densely they are packed together.