Calculating Volume
In the reaction 2H2(g) + O2(g) → 2H2O(g), what is the volume ratio of H2 to H2O?
What is 2:2?
Standard temperature and pressure
What does STP stand for?
The R stands for what in the Ideal Gas Law
What is the Ideal Gas Constant?
volume/mole ratios
In a chemical equation, what does the coefficients for reactants and products that are gases?
pressure, volume, number of moles, Ideal gas law constant, and Temperature
What do each of the variables in the ideal gas law represent ? (PV=nRT)
moles---->mole ratio----->liter conversion (1 mole= 22.4L)
How do we change moles to volume in stoichiometric problem?
The equation for the production of methane is C + 2H2(g) CH4(g). How many liters of hydrogen are needed to produce 20. L of methane
What is 40 L?
P= atm, volume= L, n= mol, R= constant, T= K
Name the units for each variable in the ideal gas law?
Volume varies directly with temperature (constant pressure)
What is Charles' Law
How many grams of bismuth (III) chloride can be produced from .575 L of chlorine gas at STP when reacting with excess bismuth metal? Use the equation Cl2+ Bi --> BiCl3
What is 7.22 g?
According to Avogadro's law, equal numbers of particles
According to Avogadro's law, what do equal volumes of gases contain?
273 Kelvin or 0˚C and 1 atmosphere, 760 mmHg/torr, or 101.3 kPa.
What is STP (standard temperature and pressure)
An excess of hydrogen gas reacts with 42.5 g of nitrogen gas. What volume (in liters) of ammonia is produced at STP? The equation for the production of ammonia is 3H2 + N2 --> 2NH3
What is 68 L?
PV=nRT
What is the ideal gas law formula?
24 dm3/mol
What is the molar volume at RTP?