Question

Correct question to answer : Wine goes bad soon after opening because the ethanol CH3CH2OH dissolved in it reacts with oxygen O2 gas to form water and aqueous acetic acid CH3COOH, the main ingredient in vinegar. Calculate the moles of ethanol needed to produce 0.900mol of acetic acid. Be sure your answer has a unit symbol, if necessary, and round it to 3 significant digits.Do not answer : Ammonium phosphate ((NH4)3(PO4) is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid with liquid ammonia. Calculate the moles of ammonia needed to produce of ammonium phosphate. Be sure your answer has a unit symbol, if necessary, and round it to significant digits.

Answer 1

• The balanced equation for the reaction is given by:

CH3CH2OH + O2 → CH3COOH+ H2O

• From the above reaction we can see that:

1 mole of ethanol (CH3Ch2OH) produces 1 mol of acetic acid(CH3COOH)

so . x mole of ethanol will produce 0.9mol of acetic acid ....(cross multiply)

xmol ethanol * 1mol acetic = 1mol ethamol* 0.9molacetic

∴ xmol ethanol = 1*0.9 /1

= 0.90 mol

• This means that, 0.90 mol of ethanol, is needed to produce 0.9mol acetic acid,.