3. Chemical Reactions

Given the reaction 2Al + 3FeO → Al2O3 + 3Fe, how many moles of aluminum (Al) are needed to react completely with 1.2 mol of iron(II) oxide (FeO)?

How many grams of AgNO3 are required to prepare 250. mL of a 0.135 M solution?

When 5.0 moles of butane (C_4H_{10}) react completely with oxygen, how many moles of carbon dioxide (CO_2) are produced?

If you have 41.0 mol of P4O10, how many moles of phosphorus (P) atoms are present?

A student titrates 25.0 mL of H2SO4 with 0.100 M NaOH. If it takes 50.0 mL of NaOH to reach the endpoint, how many moles of H2SO4 were present in the titrate?

Given the reaction 2NO2 + 2H2O → 2HNO3 + NO, if 4.60 g of NO2 reacts with excess H2O, what is the theoretical yield of NO (in grams)? (Molar masses: NO2 = 46.0 g/mol, NO = 30.0 g/mol)

For the ion Fe^{3+}, how many moles of electrons are required to completely reduce one mole of Fe^{3+} to Fe(s) during electrolysis?

Which of the following is the best synonym for the word stoichiometry?

In a hydrate of CoCl2, experimental analysis determined that there are 6 moles of water per formula unit. What is the correct formula for this hydrate?

If 4.00 g of hydrogen gas (H_2) reacts completely with excess oxygen gas (O_2) to form water (H_2O), how many grams of water are produced? (Molar masses: H_2 = 2.02 g/mol, H_2O = 18.02 g/mol)

How many grams of sodium carbonate (Na2CO3) contain 1.773 × 10^{17} carbon atoms?

In the reaction 2C2H6 + 7O2 → 4CO2 + 6H2O, what mass of C2H6 is required to produce 280.0 g of CO2?

Given that the reaction between sodium bicarbonate (NaHCO_3) and sulfuric acid (H_2SO_4) is: 2 NaHCO_3 + H_2SO_4 → Na_2SO_4 + 2 CO_2 + 2 H_2O, how many moles of NaHCO_3 are required to completely neutralize 0.8 mL of H_2SO_4 (density = 1.84 g/mL, molar mass = 98.08 g/mol) at STP?

How many grams of SiH_4 contain 8.23 \times 10^{22} atoms of hydrogen?

In the reaction 2SO2 + O2 → 2SO3 followed by SO3 + H2O → H2SO4, if 8.0 mol of SO2 and excess O2 and H2O are reacted, what is the theoretical yield of H2SO4 (in moles)?