3 plus 1 half = 3 and a half, which he does in a hour. 3.5 mph. Happy to help :D
Answer:
14 g
Explanation:
First, we have to calculate the partial pressure of N₂. We know that the air is 80% nitrogen by volume, which, for a gas mixture, means that the mole fraction of N₂ is 0.80.
We can calculate the partial pressure of N₂ (pN₂) using the following expression:
pN₂ = P . x(N₂)
where,
P is the total pressure
x(N₂) is the mole fraction of N₂
pN₂ = 1.1 atm . 0.80 = 0.88 atm
Then, we can calculate the moles of N₂ using the ideal gas equation.
![P.V=n.R.T\\n=\frac{P.V}{R.T} =\frac{0.88atm.14L}{(0.082atm.L/mol.K).(25 +273)K} =0.50mol](https://tex.z-dn.net/?f=P.V%3Dn.R.T%5C%5Cn%3D%5Cfrac%7BP.V%7D%7BR.T%7D%20%3D%5Cfrac%7B0.88atm.14L%7D%7B%280.082atm.L%2Fmol.K%29.%2825%20%2B273%29K%7D%20%3D0.50mol)
Considering that the molar mass of N₂ is 28.01 g/mol, the mass of N₂ is:
![0.50mol.\frac{28.01g}{mol} =14g](https://tex.z-dn.net/?f=0.50mol.%5Cfrac%7B28.01g%7D%7Bmol%7D%20%3D14g)
Answer:
The polar covalent bond is much stronger in strength than the dipole-dipole interaction. The former is termed an intramolecular attraction while the latter is termed an intermolecular attraction. So now we can define the two forces: Intramolecular forces are the forces that hold atoms together within a molecule.
Answer:12 seconds
Explanation:the formula is s=d/t.
s= speed, d=distance, and t= time
Solve for t
Your new arranged formula is t=d/s
T=108/9
T= 12
Dii ok not forget your units