of product from moles... Wine goes bad soon after opening because the ethanol (CH¸CH,OH) dissolved in it reacts with oxygen (0,) gas to form water and aqueous acetic acid (CH,COOH), the main ingredient in vinegar. Calculate the moles of ethanol needed to produce 2.3 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.

Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of oxygen needed to produce 2.5 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. olo ?

please make sure answer has the correct number of significant digits

A student prepared benzil according to the experimental procedure using 2.58 g. of benzoin and 12 mL of nitric acid. The mass of the crude benzil product was 2.25 g. and the mass of the recrystallized benzil product was 1.95 g. Find the molecular weights for benzoin and benzil, then answer the following questions. What was the percent yield of the crude benzil? Assume units of %. Round answer to the first decimal place. What was the percent yield of the purified benzil? Assume units of % Round answer to the first decimal place. What was the percent recovery of the purified benzil from the crude benzil? Assume units of % Round answer to the first decimal place.