Pressure and Units
Force per unit area is called
Pressure
What does Dalton’s Law state?
PT = P1 + P2 +....
Total pressure is sum of partial pressures
Which law relates pressure and volume inversely?
Boyle's
Write the Ideal Gas Law
PV=nRT
What is the molar volume at STP
22.4 L
What is the standard atmospheric presssure?
1 atm
Pressure of an individual gas in a mixture
Partial Pressure
Which law(s) requires temperature in Kelvin?
Charles' and Gay Lussac's
What is the value of R in the Ideal Gas Law (including labels)
0.0821 l*atm/mol*K
What does STP stand for and what are the values?
Standard Temperature (273K) and Pressure (1 atm)
How many atm is 1140 mmHg?
1.5 atm
If P₁ = 0.50 atm and P₂ = 228 mmHg, what is total pressure in atm?
0.8 atm
What happens to volume when temperature increases (constant pressure)?
Volume Increases
-76 degrees celsius is how much Kelvin?
197 K
Avogadro's
How many atm is 35 psi?
2.4 atm
300 mmHg + 0.50 atm → total pressure in atm
0.895 atm
A jar win an initial volume of 3 L and pressure of 2 atm has a decrease in pressure to 1 atm. What is the new volume in mL?
6000 mL
A gas at 1140 mmHg, 22400 mL and 2 degrees celsius would have how many moles?
1.49 moles
2H₂ + O₂ → 2H₂O
If 0.550 L of H2O is produced, how many L of O2 is needed?
0.275 L
202 mmHg is how many psi?
3.9 psi
Gas A = 250 torr, Gas B = 0.80 atm → total pressure in mmHg
858 mmHg
A gas goes from 300 K to 900K. What happens to pressure (constant volume)?
It triples
Find the volume of 110.9 g of carbon monoxide at 285 K and a pressure of 2.18 atm.
42.5 L
2H₂ + O₂ → 2H₂O
What mass of Oxygen is needed to produce 18.9 L of water at 17 degrees celsius and a pressure of 380 Torr?
6.35 grams