Question

calculate the relative density of spirit and honey (kg/cubic metre)​

Answer 1

Explanation:

For Honey

Relative density = mass of a volume of honey/ mass of equal volume water

But we can also use the formula

Relative density of honey = Density of honey / density of water

We know that relative density of honey ranges from 1.38 and 1.45 kg/l. So, if we take 1.40 kg/l as density of honey e.g. 1400 kg/m3 and that of water is 1000 kg/m3

Relative density of honey = 1400/1000 = 1.4

For Spirit

As a result of an experiment where a U-tube is filled with water and spirit at the same time separated by mercury. We can find out the relative density of spirit as

ρw

hwg =  ρshsg

Since mercury is at the same level so the pressure exerted by the water and spirit is the same

ρs/ρw= hw/hs *g

ρs/ρw = 10/12.5 = 0.8

​

Answer 2

Complete Question:

Calculate the relative density of spirit and honey (kg/cubic metre).

(density of spirit =780kg/meter cube and density of honey =1420kg/meter cube).

Complete Solution:

Given:

The density of spirit =780 kg/m³

The density of honey =1420 kg/m³

To Find:

The relative density of spirit and honey.

Calculation:

- The relative density of spirit = The density of spirit/ The density of water

⇒ The relative density of spirit = 780/1000

⇒ The relative density of spirit = 0.78

- The relative density of honey = The density of honey/ The density of water

⇒ The relative density of spirit = 1420/1000

⇒ The relative density of spirit = 1.42

- So, the relative densities of spirit and honey are 0.78 and 1.42 respectively.