The initial and final reading of a burette while draining out 50 drops of a liquid are 10 ml and 40 ml, respectively. Then, the volume of each drop is ______.

If the mass of a solid is 31.2 g, and if the initial and final volume of water level in a graduated cylinder when immersed is 63 mL and 59 ml, respectively, find the density of the solid.

When 20 drops of water is added to a graduated cylinderical container filled with water, the level of the liquid rises from 10 ml to 20 ml. Calculate the mass of each water drop.

On mixing 50 ml of acetone with 40 ml of chloroform, the volume is

Three solutions X,Y,Z of HCl are mixed to produce 100mL of 0.1M solution . The molarities of X,Y and Z are 0.7M, 0.12M and 0.15M respectively. What respective volumes of X,Y and Z should be mixed? a. 50mL,25mL,25mL b. 20mL,60mL,20mL c. 40mL, 30mL, 30mL d. 55mL, 20mL, 25mL

The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

A container whose capacity is 70 ml is filled with a liquid up to 50 ml. then the liquid in the container is heated. Initially, the level of the liquid falls from 50 ml to 48.5 ml. then we heat more, the level of the liquid rises to 51.2 ml. find the apparent and real expansion.