<u>Answer:</u> The correct answer is Option C.
<u>Explanation:</u>
Molar mass is defined as the sum of the atoms present in a compound each multiplied with the number of atoms present in it.
For a compound 
The molar mass will be = ![[(x\times \text{Molar mass of A})+(y\times \text{Molar mass of B})]](https://tex.z-dn.net/?f=%5B%28x%5Ctimes%20%5Ctext%7BMolar%20mass%20of%20A%7D%29%2B%28y%5Ctimes%20%5Ctext%7BMolar%20mass%20of%20B%7D%29%5D)
So, for the given compound 
,
The molar mass will be = ![[(1\times \text{Molar mass of Niyrogen})+(3\times \text{Molar mass of Hydrogen})]](https://tex.z-dn.net/?f=%5B%281%5Ctimes%20%5Ctext%7BMolar%20mass%20of%20Niyrogen%7D%29%2B%283%5Ctimes%20%5Ctext%7BMolar%20mass%20of%20Hydrogen%7D%29%5D)
Hence, the correct answer is Option C.
M1V1 = M2V2
225M1 = (2)(120)
225M1 = 240
M1 = 240/225 = 1.066 M C
Answer:
2-nitrophenol is more acidic than 3-nitrophenol
benyl amine is more basic than aniline
dimethylamine is more basic than triethylamine
Explanation
Mesomeric effect stabilizes the anion formed when hydrogen of the the -OH group in the 2-nitrophenol is lost. This mesomerism is most pronounced at the 2 and 4 position.
Stronger bases have more available lone pair of electrons. The lone pair of electrons in aniline is delocalized over the ring. Hence it is unavailable for protonation while the lone pair on benzyl amine is available for protonation
Diethylamine is a stronger base because it has a balance of both inductive electron donation by alkyl groups, and solvation of the conjugate acid unlike triethylamine. Hence Diethylamine is a stronger base than triethylamine
1 is The first one
<span>2 is the third one
3 is the second one
4 is the 4th one</span>
Remembering the equation Q=MCdeltaT where
q=is the amount of heat energy
M=mass
C=specific heat
deltaT= change in temperature
Therefore, using the equation we can substitute values and solve for q.
Q= (15 grams) (0.129 J/(gx°C))(85-22)
Q=(15) ((0.129 J/(gx°C)) (63)
Q=121.9 Joules
The energy needed to raise the temperature of 15 grams of gold from 22 degrees Celsius to 85 degrees Celsius is then 121.9 Joules or 122 Joules (if rounded up).
