Moles and Stoichiometry
6.02 x 10^23
What is Avogadro's Number?
These are the units of what? pressure- 1 atm= 700 mmHg, temperature- 0 Celsius =273 K
What is : The units of STP
The number of grams in one mole of carbon
What is: 12 grams of carbon
Those substances in a chemical reaction that exist after the reaction is finished
What is: Product
What is the atomic mass of Fe3(PO4)2?
What is: 354 grams
PV=nRT
What is: Ideal Gas Law
The number of moles in 33.0 g of hydrogen gas?
What is: 16.5 moles of hydrogen gas
What is the molar mass of Ca3(PO4)2
What is: 310.17 g/mol
5g of HCl to moles of HCl
What is: .13 moles HCl
A metal tank contains 3 gases: oxygen, helium and nitrogen. If the partial pressure of the 3 gases in the tank are 35 atm of O2, 5 atm of N2, and 25 atm of He, what is the total pressure inside of the tank?
What is: 65 atm
The number of particles found in 19.0 g of hydrogen gas
What is: 5.72 x 10^24 particles of hydrogen gas
The 4 main indications that a chemical reaction occurred.
What are: Temperature Change, Evolution of Gas, Color Change and the Formation of a Precipitate.
How many grams of water can be prepared from 5 moles of Hydrogen at STP?
What is: 90 grams
How many liters of ammonia gas at 244 torr and 35 degrees Celsius must be used to produce 2.3 kg of HCl gas?
What is: 1.7 X 10^3 L NH3
The number of atoms in 1.4 moles of carbon
What is: 8.4 x 10^23 atoms of carbon
A reaction in which the cation of one substance exchanges with the cation of the other substance.
What is: Double Replacement
A gas occupies a volume of 2.5 liters at a pressure of 1.2 atm and a temperature of 300 K. If the molar mass of the gas is 40 g/mol, calculate the density of the gas in g/L.
What is: 1.952g/L.
The pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.
What is: Boyle's Law
The ammonia (NH3) used to make fertilizers for lawns and gardens is made by reacting nitrogen and hydrogen according to the following reaction.
___N2 + ___H2 ___NH3
Determine the mass in grams of NH3 formed from 1.34 moles of nitrogen
What is: 45.574g of NH3