Question

Use the following information to answer question 42-45

A Science 30 student is provided with three unknown substances. He is told that the
identities of them are methanol, methanoic acid, and methyl methanoate,
Methanol(CH3OH)
Methanoic acid(Ch-Oh-OH)
Methyl methanoate(CH-O-O-CH3)
Conductivity of methanol
a. Positive
b. Negative
c. No change
d. Red turns blue

Answer 1

Methanol (CH3OH) is a covalent organic compound that does not dissociate into ions, therefore it shows no change in conductivity in an aqueous solution.

The correct answer is C.

Step-by-step explanation:

The substance CH3OH, known as methanol, is an organic compound with an -OH group. It is a covalent compound that does not dissociate in water to produce ions, meaning it does not conduct electricity. Hence, methanol is not considered an acid or a base in aqueous solution, as it cannot dissociate to form H+ (aq) or OH- (aq) ions.

When discussing the solubility of substances like HCl in methanol, HCl is the solute that is dissolved, and methanol acts as the solvent in the resulting solution.

Regarding the electrical conductivity of solutions, it's typically positive for substances that dissociate into ions in solution, which includes acids, bases, and salts. Since methanol does not dissociate into ions, its conductivity would not show a positive result and thus, no change would be observed in this property when tested.