How to measure the specific gravity of a liquid. Explain.
Measurement of specific gravity of a liquid:
Determination specific gravity of a liquid using Specific gravity bottle:
1) In order to determine the density by specific gravity bottle, first weigh the clean, dry, empty and stoppered bottle.
2) Then fill the bottle completely with the liquid ,stopper it ,clean the bottle from the outside with blotting paper to remove the excess liquid that spills on it outside
3) Weigh it again.
Mass/Weight of empty bottle = W1 g
Mass/Weight of bottle filled with liquid = W1 g
Mass/Weight of the liquid = W2 – W1
Volume of the specific gravity bottle = V ml
To avoid error due to the volume ,a certificate regarding the exact, accurate volume of the bottle should be taken from the supplier