Answer:
![0.0397\ \text{mol}](https://tex.z-dn.net/?f=0.0397%5C%20%5Ctext%7Bmol%7D)
Explanation:
Number of molecules of water = ![2.39\times 10^{22}](https://tex.z-dn.net/?f=2.39%5Ctimes%2010%5E%7B22%7D)
= Avogadro's number = ![6.022\times 10^{23}\ \text{mol}^{-1}](https://tex.z-dn.net/?f=6.022%5Ctimes%2010%5E%7B23%7D%5C%20%5Ctext%7Bmol%7D%5E%7B-1%7D)
Number of moles is given by
![\dfrac{2.39\times 10^{22}}{6.022\times 10^{23}}](https://tex.z-dn.net/?f=%5Cdfrac%7B2.39%5Ctimes%2010%5E%7B22%7D%7D%7B6.022%5Ctimes%2010%5E%7B23%7D%7D)
![=0.0397\ \text{mol}](https://tex.z-dn.net/?f=%3D0.0397%5C%20%5Ctext%7Bmol%7D)
The number of moles of water is
.
Answer:
Iron and Oxygen
Explanation:
Fe is Iron and O2 is Oxygen
Answer:
The formula is H202 (hydrogen peroxide, known as hydrogen peroxide)
Explanation:
100%----34g
5, 9783%---X= (5, 9783%x 34g)/100% =2 g
1g---1 atom of H
2g----x= 2g x 1 atom of H/1g = 2 atom of H
100%----34g
94, 0217%---X= (94,0217%x 34g)/100% =32 g
16g---1 atom of 0
32g----x= 32g x 1 atom of 0/16g = 2 atom of 0
Answer:
23 kPa = Partial pressure O₂
Explanation:
In a mixture of gases, the sum of partial pressure of each gas that contains the mixture = Total pressure
Total pressure = Partial pressure N₂ + Partial pressure CO₂ + Partial pressure O₂
95 kPa = 48 kPa + 24 kPa + Partial pressure O₂
95 kPa - 48 kPa - 24 kPa = Partial pressure O₂
23 kPa = Partial pressure O₂
Answer:
Velocity is vector quantity. So it needs <em>direction</em> in addoition to <em>speed</em>.
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion.