The mass of a density bottle is 20g when empty,70 g when full of water and 55 g when full of a second liquid.calculate the density of the liquid

55-20=35, 70-20=50

70-20=50

50÷35=0.7grams/cm cubic

To calculate the density of the liquid, we need to use the formula:

Density = Mass / Volume

Since the volume of the density bottle remains constant throughout the experiment, we can compare the mass of the bottle when it is filled with different substances to determine the density of the second liquid.

First, let's find the mass of the liquid inside the bottle. We know that when the bottle is empty, its mass is 20g. Therefore, the mass of the liquid inside the bottle can be calculated by subtracting the empty bottle's mass from the mass when it is full of the liquid:

Mass of the liquid = Mass when full - Mass when empty
= 70g - 20g
= 50g

Now, we can calculate the density of the liquid using the formula mentioned above:

Density of the liquid = Mass of the liquid / Volume of the liquid

Since the volume remains constant, we can determine the density from the mass ratio:

Density of the liquid = (Mass of the liquid)/(Mass of the water)

Density of the liquid = 50g /55g

Density of the liquid ≈ 0.909 g/mL

what is (55-20)/(70-20) grams/ml ?

Physics