Gas Laws
If the temperature of a gas goes up the pressure goes _______
A. Up
B. Down
Up
2Fe2O3 + 3C --> 4Fe + 3CO2
How many moles of C are required to completely react with 14.251 moles of Fe2O3 (hematite)?
21mol
Agitating will ______ the rate of solubility
A. Increase
B. Decrease
increase
The Hydrogen in water is...
A. Positive
B. Negative
Positive
How many moles of LiCl are used to make 2.5 liter of 1.06 M LiCl solution?
M= n/L
2.65 moles
5 gases occupy a container. The first gas has a pressure of 0.25 atm, second gas at 3.6 atm, third gas at 44 atm, forth gas at 10 atm and the fifth gas at 2.5 atm. What is the total pressure in the container?
60.35 atm
2Fe2O3 + 3C --> 4Fe + 3CO2
How many grams of Fe2O3 must react to generate 0.986 moles of Fe? (molar mass of Fe2O3: 159.7g/mol)
78 g
Decreasing temperature will________ the solubility of a gas
A. Increase
B. Decrease
increase
The Oxygen in water is
A. Positive
B. Negative
Negative
How many moles of NaCl are in 3.5L of a 1.5M solution of NaCl?
M= n/L
5.25
If the volume of a gas is 2.0 L at a pressure of 1.0 atm, what will the volume be if the pressure is changed to 2.0 atm at constant temperature?
P1V1=P2V2
1.0L
2Fe2O3 + 3C --> 4Fe + 3CO2
How many liters of CO2 will be generated if 2.774 moles of C completely react? (22.4 L/mol)
62 L
Decreasing Surface are will ______ the rate of solubility.
A. Increase
B. Decrease
decrease
What can dissolve polar substances?
A. something non polar
B. something polar
Something polar
If you have 4.1 moles of glucose and want to make a 0.25 M solution with it, what will be the final volume of the solution?
M= n/L
16.4
A gas has a pressure of 120 kPa at a temperature of 200 K. What will be its pressure at a temperature of 400 K, if the volume remains constant?
P1/T1 = P2/T2
240 kPa
NH3 + O2 --> NO + H2O
How many Liters of NO are produced from 30 liters of O2?
30 L
Decreasing Pressure ______ the solubility of a gas
A. Increase
B. Decrease
Decrease
If something positive is in water will the hydrogens or the oxygens surround it?
Oxygens
70 moles of KF are dissolved to make .900 L of solution. What is the molarity?
M= n/L
77.8
What is the volume of 0.50 moles of a gas at a pressure of 1.0 atm and a temperature of 273 K? (R=.0821 For atm Pressure, or 8.31 For kPa Pressure, or 62.4 For mmHg Pressure)
PV=nRT
11.2 L
6Mg + P4 --> 2Mg3P2
What mass of P4 is required to completely react with 73.4 grams of Mg? (molar mass of P4: 124g/mol. Molar mass of Mg: 24 g/mol)
63.2 g
what is the name of the thing that is dissolved?
A. solute
B. solution
C. solvent
Solute
What does Adhesion mean?
A. Water sticks to water
B. Water sticks to everything else
Water sticks to everything else
How many liters of solution are needed to make a 1.66 M solution containing 2.11 moles of KMnO4?
M= n/L
1.27 L