GAS STOICHIOMETRY Flashcards
Calcium oxide is used to remove sulfur dioxide generated in coal-burning power plants, according to the following reaction:
2CaO (s) + 2SO2 (g) + 02 (g) → 2CaSO4 (S)
What mass of calcium oxide is required to react completely with 1.4 x 103 L of sulfur dioxide?
3505 g
When calcium carbonate is heated strongly, carbon dioxide gas is released according to the ff equation:
CaCO3 (s) → CaO (s) + CO2 (g)
What mass of CO2, measured at STP, is produced if 12 L of CaCO3 is heated?
23.58 g
Potassium permanganate is produced commercially by this reaction:
2K2MnO4 (aq) + Cl2 (g) → 2KMnO4 (s) + KCIO (aq)
What volume of chlorine gas at STP would be required to produce 10.0 g of KMnO4?
0.71 L
Ammonia and gaseous hydrogen chloride combine to form ammonium chloride according to this equation:
NH3 (g) + HCI (g) → NH4CI (s)
What volume of HCl at STP is necessary for the complete reaction with 21 L of ammonia?
21 L
Consider the following reaction:
2C6H6 (g) + 1502 (g) → 12CO2 (g) + 6H20 (g)
If 2.4 L of benzene (C6H6) are consumed in this reaction, how many L of water can be formed?
7.2 L
How many liters of oxygen gas are needed to react with 0.234 grams of SO2 gas at STP?
2SO2 (g) + O2 (g) → 2SO3 (g)
0.04 L
How many liters of oxygen gas are needed to produce 36.5 liters of SO3 gas at STP?
2SO2 (g) + O2 (g) → 2SO3 (g)
18.25 L
Referring to the equation below,
N2 + 3H2 → 2NH3
What volume of ammonia at STP is produced if 30.0g of nitrogen is reacted with an excess of hydrogen?
47.97 L
Referring to the equation below,
2SO2 + O2 → 2SO3
What volume of oxygen is used to convert 75.0 L of SO2 to SO3? Assume STP.
37.5 L
An automobile airbag inflates when N2 gas results from the explosive decomposition of sodium azide (NaN3),
2NaN3 (s) → 2Na (s) + 3N2 (g)
Calculate the mass of NaN3 required to produce 50.0 L of N₂ gas at STP.
96.77 g
Aluminum metal reacts rapidly with aqueous sulfuric acid to produce aqueous aluminum sulfate and hydrogen gas:
2AI (s) + 3H2SO4 (aq) → Al2(SO4)3 (aq) + 3H2 (g)
Determine the volume of hydrogen gas produced at STP when a 2.00-g piece of aluminum completely reacts.
2.49 L
