3. Chemical Reactions

How many moles of oxygen gas (O2) are produced when 58.6 g of KNO3 decomposes according to the reaction: 4 KNO3(s) → 2 K2O(s) + 2 N2(g) + 5 O2(g)? The molar mass of KNO3 is 101.11 g/mol.

The volume of HCl gas required to react with excess Mg metal to produce 6.82 L of hydrogen gas at 2.19 atm and 35°C is ________ L. 2 HCl (g) + Mg (s) → MgCl2 (s) + H2 (g)

When 100.0 mL of 0.100 M AgNO3 solution is mixed with 200.0 mL of 0.100 M NaBr solution in a coffee cup calorimeter, the temperature of the mixed solution rises from 23.48°C to 24.16°C. Ignore the heat absorbed by the calorimeter. Determine the limiting reactant.

How many milliliters of 1.50 M H₂SO₄ are needed to neutralize 75.0 g of NaOH?

How many grams of sodium carbonate, Na₂CO₃ contain 1.773 × 10¹⁷ carbon atoms?

Consider the industrial conversion of ammonia to nitrogen monoxide: 2 N2H4(g) + 1 N2O4(g) → 3 N2(g) + 4 H2O(g). If H2O is produced at the rate of 0.66 mol/s, what is the rate of production of N2?

How many coulombs of charge are required to produce 101 g of Al from Al^{3+}(aq) by electrolysis? (Faraday's constant, F = 96,500 C/mol)

Based on the mole ratios in the balanced equation 2H2 + O2 → 2H2O, how many moles of H2O are produced when 4 moles of H2 react completely with excess O2?

How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 0.172 g of Fe2S3 if the percent yield for the reaction is 65.0%?

How many grams of KOH are required to prepare 400 mL of a 0.350 M KOH solution?

In the reaction 2 H2 + O2 → 2 H2O, how many moles of water are produced when 4 moles of hydrogen gas react completely with excess oxygen gas?

In the reaction 2 H_2 + O_2 ightarrow 2 H_2O, how many moles of O_2 are required to react completely with 1.67 mol H_2?