Question

If density of a substance is 7800 kg m⁻³. Find its
(i) density in g cm⁻³.
(ii) relative density

Answer 1

Answer:

(1)7.8gram/cm^-3

(2) 7.8

Answer 2

Density =  7.8 g cm⁻³

Relative density = 7.8

Explanation:

Given: Density of a substance = 7800 kg m⁻³.

(i) Density of the substance in g cm⁻³ = 7800 * 1000 / 100³ = 7.8 g cm⁻³

(ii) Relative density of the substance = Density (absolute) of the substance / Density of water at 4 degree Celsius. Unitless quantity.

Density of water = 1000 kg / m3

Relative density = 7800 / 1000 = 7.8