Answer:
The right answer is "6 gm".
Explanation:
Given:
Amount of Li,
= 0.3 gm
Battery rated,
= 5 Ah per cell
Total number of cells,
= 4
The total power limit will be:
= ![5\times 4](https://tex.z-dn.net/?f=5%5Ctimes%204)
= ![20 \ Ah](https://tex.z-dn.net/?f=20%20%5C%20Ah)
hence,
The amount of Li in battery will be:
= ![(0.3)\times 20](https://tex.z-dn.net/?f=%280.3%29%5Ctimes%2020)
= ![6 \ gm](https://tex.z-dn.net/?f=6%20%5C%20gm)
(Allowed for transportation).
<u>Answer:</u> The mass of chlorine gas is 4.54 grams.
<u>Explanation:</u>
To calculate the mass of the gas, we use the equation given by ideal gas equation:
![PV=nRT](https://tex.z-dn.net/?f=PV%3DnRT)
Or,
![PV=\frac{m}{M}RT](https://tex.z-dn.net/?f=PV%3D%5Cfrac%7Bm%7D%7BM%7DRT)
where,
P = pressure of the gas = 98.7 kPa
V = Volume of gas = 3.34 L
m = given mass of chlorine gas = ?
M = Molar mass of chlorine gas = 35.45 g/mol
R = Gas constant = ![8.31\text{ L kPa }mol^{-1}K^{-1}](https://tex.z-dn.net/?f=8.31%5Ctext%7B%20L%20kPa%20%7Dmol%5E%7B-1%7DK%5E%7B-1%7D)
T = Temperature of the gas = ![37^oC=[37+273]=310K](https://tex.z-dn.net/?f=37%5EoC%3D%5B37%2B273%5D%3D310K)
Putting values in above equation, we get:
![98.7kPa\times 3.34L=\frac{m}{35.45g/mol}\times 8.31\text{ L kPa }mol^{-1}K^{-1}\times 310K\\\\m=4.54g](https://tex.z-dn.net/?f=98.7kPa%5Ctimes%203.34L%3D%5Cfrac%7Bm%7D%7B35.45g%2Fmol%7D%5Ctimes%208.31%5Ctext%7B%20L%20kPa%20%7Dmol%5E%7B-1%7DK%5E%7B-1%7D%5Ctimes%20310K%5C%5C%5C%5Cm%3D4.54g)
Hence, the mass of chlorine gas is 4.54 grams.
Answer:
To make a 3.50 M solution, 38.5 moles of solute will be needed if 11 liters of solution are required.
Explanation:
Molarity is defined as a concentration unit that indicates the number of moles of solute per liter of solution. That is, it indicates the number of moles of solute that are dissolved in a given volume. Then, the molarity is calculated by dividing the moles of the solute by the liters (volume) of the solution:
![Molarity( M)=\frac{number of moles of solute}{volume}](https://tex.z-dn.net/?f=Molarity%28%20M%29%3D%5Cfrac%7Bnumber%20of%20moles%20of%20solute%7D%7Bvolume%7D)
Molarity is expressed in units (
).
So, knowing the definition of molarity, you can apply a rule of three as follows: if by the definition of molarity in 1 L of solution there are 3.5 moles of solute, in 11 L of solution how many moles of solute are there?
![moles=\frac{11 L*3.5 moles}{1L}](https://tex.z-dn.net/?f=moles%3D%5Cfrac%7B11%20L%2A3.5%20moles%7D%7B1L%7D)
moles=38.5
<u><em>To make a 3.50 M solution, 38.5 moles of solute will be needed if 11 liters of solution are required.</em></u>
<u><em></em></u>
Answer:
The order of increasing number of micro states in the resulting system is 3 < 1 < 5 < 2 < 4.
Explanation:
A micro state is a specific way in which we can arrange the energy of the system.Many of then are indistinguishable to each other higher the entropy.
Increase the temperature a volume makes more micro states.
Therefore, the descriptions in order of the increasing number of micro states .
Therefore, the increasing order of micro states in the resulting system is as follows.
3 < 1 < 5 < 2 < 4.