Gelatin has a density of 1.27 g/cm³. If you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass?

A. 2540 g
B. 2500 g
C. 3.9 x 10-4
D. 3.937x 10-4

Respuesta :

The answer to this is a. 2,540 g
PBCHEM

Answer : Option A) 2540 g

Explanation :

Here, the density of the gelatin is known to be as 1.27 [tex]g/cm^{3}[/tex].

And the volume 2.0 liter

Here, 2 liters = 2 [tex]decimetres^3[/tex] so to convert it into [tex]centimetres^3[/tex] we have to multiply it, with 1000 to 2000 [tex]centimetres^3[/tex],

Using, the formula for density;

ρ =  [tex]\frac{m}{v}[/tex]

Here,

ρ = density;

m =mass and v=volume.

Substituting the values given; ρ = 1.27 [tex]g/cm^{3}[/tex]

m = to be found and v = 2000 [tex]centimetres^3[/tex]

ρ =  [tex]\frac{m}{2000centimetres^3}[/tex]

1.27 [tex]g/cm^{3}[/tex] = m X 2000 [tex]centimetres^3[/tex]

m = 2540 g

Therefore, the mass will be 2540 g