Answer:
The partial pressure of the other gases is 0.009 atm
Explanation:
Step 1: Data given
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules and 1% of other gases.
The atmospheric pressure = 0.90 atm
Step 2: Calculate mol fraction
If wehave 100 moles of air, 78 moles will be nitrogen,
21 moles will be oxygen, and 1 mol will be other gases.
Mol fraction = 1/100 = 0.01
Step 3: Calculate the partial pressure of the other gases
Pgas = Xgas * Ptotal
⇒ Pgas = the partial pressure = ?
⇒ Xgas = the mol fraction of the gas = 0.01
⇒Ptotal = the total pressure of the pressure = 0.90 atm
Pgas = 0.01 * 0.90 atm
Pgas = 0.009 atm
The partial pressure of the other gases is 0.009 atm
<span>Number of moles of aluminum chloride = 0.216. </span>
<span>Mass of compound = Number of moles x Molar Mass </span>
<span>= 0.216mol x [ 37 + 3(35.5) ]g/mol </span>
<span>= 30.996 </span>
<span>= 31.0g (3 s.f.)</span>
Answer:
N = N1V1 +N2V2 +N3V3
(resultant ) ________________
V1+V2+V3
I would agree with the second one, not the first. You can't always see the chemical reaction, and it isn't always sudden. But the second claim is true.
Explanation:
False, they also provide oxygen
