Stoichiometry
List the unknown and known for the following including the correct formula for each:
What mass of potassium would react with excess chlorine to produce 156 g of potassium chloride?
What is
Known: 156 g KCl
Unknown: g of K
What are the three components of the combined gas law?
What is volume, temperature, and pressure
What is the ideal gas law?
What is PV = nRT
Balance the following:
__K + __Cl2 ------> __KCl
What is 2,1,2
What is happens with Temperature during Boyle's Law
What is held constant in Boyle's Law
What is held constant in Charles' Law?
What is Pressure
What is the equation for the combined gas law?
What is P1V1T2=P2V2T1
What is the value for R?
What is 0.0821
Balance the following:
__Cu + __Zn(NO3)2 -------> __Zn + __ Cu(NO3)
What is 2,1,1,2
What is the equation for Boyle's Law?
What is P1V1 = P2V2
The total volume of oxygen that can be obtained from a particular tank at 1.00 atm and 21 degrees Celsius is 785 L. What would be this volume of oxygen if the temperature had been 28 degrees Celsius?
What is 804 L
What is held constant in the combined gas law?
What is number of moles
What does STP stand for?
What is standard temperature and pressure, which is 273 K and 1 atm
What mass of iron is needed to react with sulfur in order to produce 96 grams of iron (III) sulfide according to the following equation?
2 Fe + 3 S -----> Fe2S3
Known: (Molar mass:
Unknown: (Molar mass:
What is 53.5 g of Fe
A volume of air occupying 3.00L at .765atm is compressed to a pressure of 1.43atm. The temperature remains constant. What is the new volume?
What is 1.60L
What is the Charles' Law equation?
What is V1T2=V2T1
What is a real life example of the combined gas law and why?
What is Hot Air Balloons
A 0.921 mol sample of hydrogen gas at a temperature of 8 degrees Celsius is found to occupy a volume of 28.5 liters. The pressure of this gas sample is?
What is 0.75 atm
What mass of zinc is needed to react with 23.1 g of phosphoric acid H3(PO4) according to the following equation?
__Zn + __H3(PO4) -----> __H2 + __Zn3(PO4)2
Known: (Molar mass:
Unknown: (Molar mass:
What is 23 g of Zn
As pressure increases, volume does what?
What is decreases
When temperature increases, volume...?
What is increases
A helium-filled weather balloon has a volume of 823 L at 18 degrees Celsius and 1 atm. It is released and rises to an altitude of 2.63 km, where the pressure is 0.8 atm and the temperature is 2 degrees Celsius. What is the volume at these new conditions?
What is 972.2 L
A sample of krypton gas collected at a pressure of 0.589 atm and a temperature of 275 K is found to occupy a volume of 0.641 L. How many grams of Kr gas are in the sample?
What is 0.0002 g of Kr