Question

The initial water volume in this container was 10.0 mL. When the key was submerged, 3 volumes of displaced water were collected: 0.7 mL, 0.8 mL, and 0.9 mL. What is the volume of the key?

Answer 1

It has given that, initial volume of water in a container is 10 mL. When a key was submerged, 3 volumes were of displaced water were collected ; 0.7 mL, 0.8 mL and 0.9 mL.

We have to find the volume of key.

Solution : a/c to Archimedes principle, when a body is fully or partially is submerged in a liquid, volume of liquid displaced by body is equal volume of part of body submerged in that liquid.

Here, volume of part of key submerged in liquid = volume of water displaced by key = 0.7 + 0.8 + 0.9 = 2.4 mL

Here key is completely submerged.

So, volume of key = volume of part of key submerged in liquid = 2.4 mL

therefore the volume of key is 2.4 mL

Answer 2

Answer:

2.4ml

Explanation: