3. Chemical Reactions

If you have 1.21 kg of pure aspirin, how many 81 mg low-dose aspirin tablets can be produced from this amount?

How many chloride ions are present in 1.50 mol of aluminum chloride (AlCl_3)?

How many Br^- ions are present in 1.00 mole of FeBr_3?

Given the reaction N2 + 3 H2 → 2 NH3, how many moles of NH3 can be produced from 16.5 mol of H2 and excess N2?

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?