Q. 11.42 - An Introduction to General, Organic, and Biological Chemistry

Question

Match the following physical and chemical properties with octane, ${\mathrm{C}}_8{\mathrm{H}}_{18}$, found in gasoline, or magnesium sulfate, ${\mathrm{MgSO}}_4$, also called Epsom salts: ($11.1$)

a. contains only covalent bonds

b. melts at $1124 °C$

c. is insoluble in water

d. is a liquid at room temperature 

e. is a strong electrolyte

Step-by-Step Solution

Answer

(a)The compound containing only covalent bonds is octane

(b) The compound that melts at $1124°C$ is magnesium sulfate

(c) The compound that is insoluble in water is octane

(d) The compound that is a liquid at room temperature is magnesium sulfate

(e) The compound that is a strong electrolyte is magnesium sulfate

Part (a) Step 1: Given information

We need to find that the given chemical property match whether the octane or magnesium sulfate

Part (a) Step 2: Explanation

We know that 

The octane contains only covalent bonds while magnesium sulfate is ionic

Therefore, 

The compound containing only covalent bonds is octane 

Part (b) Step 1: Given information

We need to find that the given physical or chemical property match whether the octane or magnesium sulfate 

Part (b) Step 2: Explanation

We know that

The melting point of magnesium sulfate is $1124°C$

Therefore, 

The required compound is magnesium sulfate

Part (c) Step 1: Given information

We need to find that the given physical or chemical property match whether the octane or magnesium sulfate 

Part (c) Step 2: Explanation

We know that

Every organic compound is insoluble in water and among the given compounds octane is organic

Therefore, the required compound is octane  

Part (c) Step 1: Given information

We need to find that the given physical or chemical property match whether the octane or magnesium sulfate  

Part (d) Step 2: Explanation

We know that  

Mostly inorganic compounds are liquid at room temperature and among the given compounds magnesium sulfate is inorganic 

Therefore, 

The required compound is magnesium sulfate

Part (e) Step 1: Given information

We need to find that the given physical or chemical property match whether the octane or magnesium sulfate  

Part (e) Step 2: Explanation

We know that 

The octane contains only covalent bonds while magnesium sulfate is ionic

Therefore, 

The compound that is a strong electrolyte is magnesium sulfate