Question

Vinegar is a solution of acetic acid (melting point 16.5 °c) in water. at room temperature (25 °c), vinegar is an example of a ________ solution.

Answer 1

At room temperature, vinegar is an example of a liquid solution, as acetic acid is in a liquid state when dissolved in water. The empirical and molecular formulas of acetic acid can be found using its percentage composition and molar mass.

Step-by-step explanation:

Vinegar is a solution of acetic acid (melting point 16.5 °C) in water. At room temperature (25 °C), vinegar is an example of a liquid solution. This is because at room temperature, acetic acid is above its melting point and thus exists in the liquid state, dissolving in water to form a solution.

To determine the empirical formula of acetic acid with the given percentage composition of 39.9% carbon, 6.7% hydrogen, and 53.4% oxygen, one would start by assuming 100 grams of substance to convert percentages to grams directly. Then, for each element, the number of moles is found by dividing by the atomic mass (C:12.01 g/mol, H:1.008 g/mol, O:16.00 g/mol), followed by dividing by the smallest number of moles to get the ratio.

Answer 2

At 25 degrees. it is certainly at liquid state so it must be a liquid acidic solution since no neutralization occurred.