Question

The density of gold is 19.32. Give two reasons why this statement is incomplete

Answer 1

Answer: The units and conditions are not written.

Explanation:

Density is defined as the ratio of mass of a substance to the volume of substance. The equation used to calculate density of a substance follows:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

This property is expressed in g/mL or kg/L

Density depends on temperature and pressure of the system.

As, the temperature of the system increases, the particles move freely which increases the volume of system and leads to the decrease of density.

As, the pressure of the system increase, the particles come closer to one another which decreases the volume of system and leads to the increase of density.

So, for the given value of density, two reasons are:

1. Units are not given.
2. Conditions are not mentioned.

Answer 2

A: there is no unit. b: it doesn't present the temperature and pressure