thank you in advance and please answer both parts

Aqueous sulfuric acid (H2SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium suffate (Na2SO4) and liquid water (H2O). What is the theoretical yield of water formed from the reaction of 55.9g of sulfuric acid and 76.6g of sodium hydroxide? Be sure your answer has the correct number of significant digits in it. Liquid hexane (CH3(CH2)4CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). if I.10 g of water is produced from the reaction of 3.4g of hexane and 3.6g of exygen gas, calculate the percent yleld of water. Be sure your answer has the correct number of significant digits in it