Atwo liquid double column enlarged-erids manometer is used to measure pressure difference between two points. the basins are partially filled with liquid of specific gravity 0.75 and the lower portion of u fube is filled with mercury of specific gravity 13.6. the diameter of the basin is 20 times higher than that of the u-tube, find the pressure difference if the u tube reading is 25 mm and the liquid in the pipe has a specific weight of 0.475 n/m2

Density and pressure

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

First up write the aim
then write the materials reqd.
then the procedure which you follow
then observation
then conclusion
then you can write lab safety rules or precautions(you can avoid if u want).
lemme' give an example
aim: to observe the double displacement reaction
materials reqd: bacl2 and na2so4, test tubes and a dropper
procedure:
1. take bacl2 in a test tube and na2so4 in the other.
2. then pour bacl2 into na2so4 solution.
3. observe
observation:
you will see that a white precipitate is formed called baso4. along with that common salt or nacl is formed.
the equation is
bacl2+na2so4=baso4+2nacl
conclusion:
a double displacement reaction is observed.
hope it