3. Chemical Reactions

Lithium and nitrogen react to produce lithium nitride according to the equation: 6Li + N2 → 2Li3N. How many moles of N2 are needed to react with 0.450 mol of lithium?

Propane, C3H8, a fuel used in many outdoor grills, burns in oxygen to produce carbon dioxide gas, CO2, and water vapor, H2O, as shown in the reaction below. If 2.0 mol of propane are burned (reacted with oxygen), how many moles of carbon dioxide will be produced?

Stoichiometric amounts of nitrogen gas and hydrogen gas react in a calorimeter to produce 5 g of ammonia gas. The calorimeter temperature rises 0.42 °C. The calorimeter and water have a combined heat capacity of 32.16 kJ/°C. Calculate the heat of formation of ammonia (in kJ/mol).

The common fertilizer NH4NO3(s) can explosively decompose according to the following reaction: 2 NH4NO3(s) → 2 N2(g) + O2(g) + 4 H2O(g). ΔH = -236.15 kJ/mol. What is the heat released when 80.06 g of NH4NO3(s) explodes? Molar mass of NH4NO3(s) = 80.06 g/mol.

The reaction between nitrogen and hydrogen to form ammonia is carried out in a flask containing 30.5 g of N2 and 8.65 g of H2. What is the theoretical yield of NH3 in grams? N2(g) + 3H2(g) → 2NH3(g)

The reaction of 50 mL of Cl2 gas with 50 mL of C2H4 gas via the equation: Cl2 (g) + C2H4 (g) → C2H4Cl2 (g) will produce a total of ________ mL of products if pressure and temperature are kept constant.

In the reaction 2 C2H6O + 2 K2Cr2O7 + 8 H2SO4 → 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 11 H2O, if the rate of appearance of Cr2(SO4)3 is 1.24 mol/min, what is the rate of disappearance of C2H6O?

Using the equation 4NH3 + 5O2 → 4NO + 6H2O, what mass of ammonia (NH3) is needed to react with oxygen to form 25 g of water (H2O)?

What is the first step in solving a stoichiometric problem?

What is the enthalpy change associated with the reaction of 25.0 g of SO2 in excess oxygen, given the reaction: 2 SO2(g) + O2(g) → 2 SO3(g) with ΔH° = -198.2 kJ?

What is the maximum amount of water (in grams) that can be produced when 964.91 g of C3H8 reacts with 511.39 g of oxygen according to the balanced equation: C3H8 + 5 O2 -> 3 CO2 + 4 H2O?

Given 10.0 g of phosphorus (P) and 35.0 g of chlorine (Cl2), what mass of phosphorus pentachloride (PCl5) can be produced?

What mass of Aluminum (Al) is needed to react completely with 35.0 mL of 2.0 M Hydrochloric acid (HCl), given the reaction: 2 Al + 6 HCl → 2 AlCl3 + 3 H2?

What volume of 0.128 M HCl is needed to completely neutralize 2.87 g of Mg(OH)₂?

What volume of 0.200 M HCl solution is needed to exactly neutralize 25.0 mL of 0.150 M NaOH?