# Question fa73a

Aug 18, 2016

The density of the liquid is 1.22 × 10^4 color(white)(l)"kg/m"^3.

#### Explanation:

The relative density of a substance is its density compared to the density of a reference substance (usually water).

color(blue)(|bar(ul(color(white)(a/a) "RD" = ρ_text(substance)/ρ_text(water)color(white)(a/a)|)))" "

where

$\text{RD}$ = the relative density of the substance
 ρ_text(substance) = the actual density of the substance
ρ_text(water) = the density of water

We can rearrange the formula to get

ρ_text(substance) = "RD" × ρ_text(water)

$\text{RD} = 12.2$
 ρ_"water" = "1 × 10 × 10 × 10 kg/m"^3 = 1 × 10^3 color(white)(l)"kg/m"^3
ρ_"substance" = 12.2 × 1 × 10^3 color(white)(l)"kg/m"^3 = 1.22 × 10^4color(white)(l) "kg/m"^3#