Answer: sodium amide undergoes an acid -base reaction
Explanation:
sodium amide is a ionic compound and basically exists as sodium cation and amide anion. Amide anion is highly basic in nature and hence as soon as there is amide anion generated in the solution , Due to its very pronounced acidity it very quickly abstracts the slightly acidic proton available on methanol.
This leads to formation of ammonia and sodium methoxide.
Hence sodium amide reacts with methanol and abstracts its only acidic proton and form ammonia and sodium Methoxide.
Hence the 3rd statement is a corrects statement.
So we cannot use methanol for sodium amide because sodium amide itself would react with methanol and the inherent molecular natur of sodium amide would then change.
The 1st and 2nd statements both are incorrect because both the compounds methanol as well as sodium amide have dipole moments and hence are polar molecules.
The 4th statement is also incorrect as both the molecules have dipole moment and hence there would be ion-dipole forces operating between them.
The following reaction occurs:
NaNH₂+CH₃OH→NH₃+CH₃ONa
Answer:
It was called MANURE
Explanation:
Its a type of fertilizer which plant are ploughed back into the soil.
GOOD LUCK
Answer:
Compound B has greater molar mass.
Explanation:
The depression in freezing point is given by ;
..[1]
![m=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Mass of solvent in kg}}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B%5Ctext%7BMass%20of%20solute%7D%7D%7B%5Ctext%7BMolar%20mass%20of%20solute%7D%5Ctimes%20%5Ctext%7BMass%20of%20solvent%20in%20kg%7D%7D)
Where:
i = van't Hoff factor
= Molal depression constant
m = molality of the solution
According to question , solution with 5.00 g of A in 100.0 grams of water froze at at lower temperature than solution with 5.00 g of B in 100.0 grams of water.
The depression in freezing point of solution with A solute: ![\Delta T_{f,A}](https://tex.z-dn.net/?f=%5CDelta%20T_%7Bf%2CA%7D)
Molar mass of A = ![M_A](https://tex.z-dn.net/?f=M_A)
The depression in freezing point of solution with B solute: ![\Delta T_{f,B}](https://tex.z-dn.net/?f=%5CDelta%20T_%7Bf%2CB%7D)
Molar mass of B = ![M_B](https://tex.z-dn.net/?f=M_B)
![\Delta T_{f,A}>\Delta T_{f,B}](https://tex.z-dn.net/?f=%5CDelta%20T_%7Bf%2CA%7D%3E%5CDelta%20T_%7Bf%2CB%7D)
As we can see in [1] , that depression in freezing point is inversely related to molar mass of the solute.
![\Delta T_f\propto \frac{1}{\text{Molar mass of solute}}](https://tex.z-dn.net/?f=%5CDelta%20T_f%5Cpropto%20%5Cfrac%7B1%7D%7B%5Ctext%7BMolar%20mass%20of%20solute%7D%7D)
![M_A](https://tex.z-dn.net/?f=M_A%3CM_B)
This means compound B has greater molar mass than compound A,
C) Calcium chloride has stronger inter molecular forces than water.
Answer:
Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water.
Explanation: