Answer: Option (A) is the correct answer.
Explanation:
When the questions are technical and may require some research from the interviewee then an interviewer want to provide the interviewee a list of questions before the interview.
As only in this case, interviewer wants the interviewee to take some time in order to think about the particular question and then answer it appropriately.
As if there is no list of questions then there are changes that interviewee will forget about some useful point which is important to keep in mind before answering.
Answer:
0.13 cm^3
Explanation:
Volume = Mass/ density
1.8 g/ml / 14g = 0.128571429
Both numbers have 2 significant digits.
With that, the answer rounds to 0.13
The final answer is 0.13 cm(don't forget the units for volume)
Hope it helped!
The number of particles : 2.75 x 10²¹
<h3>Further explanation </h3>
A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12
1 mole = 6.02.10²³ particles

N = number of particles
No = Avogadro number (6.02.10²³)
n = number of moles
While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule
0.75 gram sample of Calcium Nitrate; Ca(NO₃)₂
MW of Ca(NO₃)₂ : 164.09 g/mol

The number of particles

Answer:
The molar solubility of nitrogen gas is
.
Explanation:
Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.
To calculate the molar solubility, we use the equation given by Henry's law, which is:

where,
= Henry's constant = 
= partial pressure of nitrogen gas
Total air pressure = P = 2.71 atm
Percentage of nitrogen in air = 78.09%
Mole fraction of nitrogen ,

Putting values in above equation, we get:

Hence, the molar solubility of nitrogen gas is
.
Answer:
I cant really do that but I will give u the material to make a table
Explanation:
Solid is the state of matter in which the substance has a definite shape and volume. Liquid is the state in which the substance takes the shape of its container but has a definite volume.Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy.