What is the balanced chemical equation for the reaction between salicylic acid (C7H6O3) and acetic anhydride (C4H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2)?

According to the reaction Al2S3(s) + 6 H2O(l) → 2 Al(OH)3(s) + 3 H2S(g), what mass of Al2S3 remains unreacted when 20.00 g of Al2S3 and 2.00 g of H2O are reacted? The molar masses are: Al2S3 = 150.17 g/mol, H2O = 18.02 g/mol.

According to the following reaction, what mass of PbCl2 can form from 235 mL of 0.110 M KCl solution? Assume that there is excess Pb(NO3)2.2 KCl(aq) + Pb(NO3)2(aq) ⟶ PbCl2(s) + 2 KNO3(aq)

According to the following reaction, what volume of 0.244 M KCl solution is required to react exactly with 50.0 mL of 0.210 M Pb(NO3)2 solution?2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq)

Ammonia gas decomposes according to the equation: 2NH3(g) → N2(g) + 3H2(g). If 15.0 L of nitrogen is formed at STP, how many liters of hydrogen will be produced (also measured at STP)?

In the reaction 2C8H18(g) + 25O2(g) → 16CO2(g) + 18H2O(g), if 0.300 mol of octane (C8H18) is allowed to react with 0.870 mol of oxygen (O2) and oxygen is the limiting reactant, resulting in the production of 0.626 mol of water (H2O), how much octane is left unreacted?

C7H6O3 + C4H6O3 → C9H8O4 + CH3CO2H. How many grams of salicylic acid (C7H6O3) are needed to produce 11.9 g of aspirin (C9H8O4)?

CH3OH can be synthesized by the reaction CO(g) + 2H2(g) → CH3OH(g). How many liters of CO gas are required to produce 44.8 liters of CH3OH gas at STP?

Calculate how many moles of N₂ are produced when 2.4 mol of N₂H₄ completely react according to the balanced equation: 3 N₂H₄ → 4 NH₃ + 2 N₂.