Answer:
The total number of Cl atoms in 150mL of liquid CCl4 is 3.73*10²⁴.
Explanation:
First you must determine the mass of CCL4 present in 150mL of CCl4. Density is a quantity that allows us to measure the amount of mass in a certain volume of a substance, whose expression for its calculation is the quotient between the mass of a body and the volume it occupies:
![density=\frac{mass}{volume}](https://tex.z-dn.net/?f=density%3D%5Cfrac%7Bmass%7D%7Bvolume%7D)
In this case, the density value of d = 1.589 g/mL. Then, being the volume equal to 150 mL, the value of the mass can be calculated as:
mass= density*volume
mass=1.589 g/mL * 150 mL
mass= 238.35 g
Now, being the molar mass of CCl4 154 g/mol, the number of moles that 238.35 g represents is calculated as:
![moles=\frac{238.35 g}{154 \frac{g}{mol} }](https://tex.z-dn.net/?f=moles%3D%5Cfrac%7B238.35%20g%7D%7B154%20%5Cfrac%7Bg%7D%7Bmol%7D%20%7D)
moles= 1.55
1 mole of the compound CCl4 contains 4 moles of Cl. Then, using a simple rule of three, it is possible to calculate the number of moles of Cl that 1.55 moles of CCl4 contain:
![moles of Cl=\frac{1.55 moles of CCl_{4} *4 moles of Cl}{1 mole of CCl_{4} }](https://tex.z-dn.net/?f=moles%20of%20Cl%3D%5Cfrac%7B1.55%20moles%20of%20CCl_%7B4%7D%20%2A4%20moles%20of%20Cl%7D%7B1%20mole%20of%20%20CCl_%7B4%7D%20%7D)
moles of Cl= 6.2
Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance. In this case it can be applied as follows: if 1 mole of Cl contains 6.023*10²³ atoms, 6.2 moles of Cl how many atoms does it contain?
![atoms of Cl=\frac{6.2 moles*6.023*10^{23} atoms}{1 mole}](https://tex.z-dn.net/?f=atoms%20of%20Cl%3D%5Cfrac%7B6.2%20moles%2A6.023%2A10%5E%7B23%7D%20atoms%7D%7B1%20mole%7D)
atoms of Cl= 3.73*10²⁴
<u><em>The total number of Cl atoms in 150mL of liquid CCl4 is 3.73*10²⁴.</em></u>
Answer:
February. we will be in the future types, I
Explanation:
Collins the best year fixed come in handy when but it at a very nice relaxing. it will not have the option?
Answer:
Option C
Maximum potential energy is at point R.
Explanation:
Potential energy is a product of mass, acceleration due to gravity and height ie
PE=mgh where PE is the potential energy, m is mass of an object, g is acceleration due to gravity whose value is normally taken as 9.81 and h is height. Since at point R we have the maximum height, the potential energy will be highest at this point.
Molten Mattet Seeps through the crust and forms new land.
I think it's D because sunlight is a solar system