A bottle of glycerine holds 0.0005 m³ of it, with a mass of 0.63 kg…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A bottle of glycerine holds of it, with a mass of . Find its density. Poured gently onto water, does glycerine float on top or sink to the bottom?
Need a reminder? The key ideaShow
, in (and ). A thing floats on a liquid if its density is less than the liquid's. Squeezing a gas into less space makes it denser.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Density. .
Step 2. Float or sink. is more than , so glycerine is denser than water and sinks below it.
Answer: . It sinks to the bottom.
Check. , the mass we started with.
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