Answer:
option D= Gold (I) nitride
Explanation:
The name of the given compound is gold(I) nitride.
Molar mass can be determine by following way:
molar mass Au3N = (molar mass of gold × 3) + (molar mass of nitrogen)
molar mass Au3N = (196.97 × 3 ) + ( 14 )
molar mass of Au3N = 590.91 g/mol + 14 g/mol
molar mass of Au3N = 604.91 g/mol
The nitrogen has valency of -3 so three Au(+1) will require while the valency of Au is (1+) one nitrogen will require to make the compound overall neutral.
Au3N
3(1+) + (-3) = 0
+3 - 3 = 0
0 = 0
The overall charge is 0, the compound will be neutral.
Answer:
The correct answer is - B. New Moon.
Explanation:
The change of moon disc from all black to all light to all dark again is called the lunar cycle. It takes almost 30 days (29.53059 to be precise). The time from all black to all light or all light to all black is almost 15 days. All black moon is termed as the new moon and all light is termed as the full moon.
As given that the full moon is shown happening on the eleventh of the month then what moon would be around 25 which is 14 days later that should be in waxing gibbous phase and almost new moon.
Thus, the correct answer is - B. new moon.
The entropy (S) for one mole of crystalline N₂O at 0 K is 3.28 × 10⁻²² J/K.
<h3>
What is Entropy (S) ?</h3>
- The quantity of thermal energy per unit of temperature in a system that cannot be utilized to carry out meaningful work is termed as entropy.
- It is denoted by S.
- Since work is generated by ordered molecular movement, entropy also acts as a substitute for a system's molecular disorder or unpredictability.
- Entropy theory offers deep insights into how frequently common events spontaneously change.
- Boltzmann's entropy formula that gives the relation between the absolute entropy S of a thermodynamic system and the number of possible microstates is given as follows :
S = k logW , Where K is Boltzmann's constant.
From the given question,
S = (1.38 × 10⁻²³) (6.022 × 10⁻²²)
S = 3.28 × 10⁻²² J/K
Learn more about entropy with the given link
brainly.com/question/13135498
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