Answer:
The amount of NaOH required to prepare a solution of 2.5N NaOH.
The molecular mass of NaOH is 40.0g/mol.
Explanation:
Since,
NaOH has only one replaceable -OH group.
So, its acidity is one.
Hence,
The molecular mass of NaOH =its equivalent mass
Normality formula can be written as:![Normality=\frac{mass of solute NaOH}{its equivalent mass} * \frac{1}{volume of solution in L} \\](https://tex.z-dn.net/?f=Normality%3D%5Cfrac%7Bmass%20of%20solute%20NaOH%7D%7Bits%20equivalent%20mass%7D%20%20%2A%20%5Cfrac%7B1%7D%7Bvolume%20of%20solution%20in%20L%7D%20%5C%5C)
Substitute the given values in this formula to get the mass of NaOH required.
![2.5N=\frac{mass of NaOH}{40g/mol} *\frac{1}{1L} \\mass of NaOH=2.5N*40gmol\\ = 100.0g](https://tex.z-dn.net/?f=2.5N%3D%5Cfrac%7Bmass%20of%20NaOH%7D%7B40g%2Fmol%7D%20%2A%5Cfrac%7B1%7D%7B1L%7D%20%5C%5Cmass%20of%20NaOH%3D2.5N%2A40gmol%5C%5C%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%3D%20%20%20%20%20%20100.0g)
Hence, the mass of NaOH required to prepare 2.5N and 1L. solution is 100g
3.1613994181344593 moles of MgC12 (3.16)
Answer:
centrifugation
Explanation:
Well the process centrifugation is used for separation of cream from curd.Well the force rotates it and the heavy and light particles are separated.Ij this way we can separate this mixture.
Hope it helps you.
I believe its NaCI and cant be Hbr