3. Chemical Reactions

Given the reaction NBr3 + 3 NaOH → 3 NaBr + N(OH)3, if there are 40 mol of NBr3 and 48 mol of NaOH, what is the limiting reactant?

A solution contains 0.400 L of 0.350 M KBr. What is the mass of KBr (in grams) present in the solution?

In the reaction N2H4 + 2 H2O2 → N2 + 4 H2O, what are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water (H2O)?

In the reaction N_2 + 3H_2 → 2NH_3, how many hydrogen molecules (H_2) are required to completely react with 10 nitrogen molecules (N_2)?

What volume (in mL) of 0.2600 M HBr is required to completely neutralize 40.00 mL of 0.8000 M NaOH?

How many SO_3^{2-} ions are present in 99.6 mg of Na_2SO_3? (Molar mass of Na_2SO_3 = 126.05 g/mol)

For the reaction 2Mg + O_2 → 2MgO, if 8.0 g of MgO is produced, how many moles of Mg were consumed?

According to the reaction Fe + CuSO4 → Cu + FeSO4, how many moles of CuSO4 are required to completely react with 2 moles of Fe?

A chemical equation can be used to solve stoichiometry problems provided that it:

When 64.0 g of C_2H_2 (acetylene) are completely combusted in oxygen, how many moles of H_2O are produced?

In the combustion of carbon, how many grams of oxygen (O_2) are required to produce 37.15 g of carbon dioxide (CO_2)?C + O_2 → CO_2

In the reaction PCl3 + Cl2 → PCl5, what is the mole ratio of PCl3 to PCl5?

How many grams of calcium carbonate (CaCO_3) are required to completely react with 25.0 mL of 0.750 M hydrochloric acid (HCl)?

Seawater contains approximately 600 mmol of NaCl per liter. How many grams of NaCl are present in 250 mL of seawater?

Given the reaction S + O_2 → SO_2, how many moles of sulfur (S) are required to produce 15.0 mol of sulfur dioxide (SO_2)?