I am very confused with this problem, i tried using the percent yeild but i got stuck. Can u help?

The O'Keefe's have 75 gallons of cucumbers for pickling. The 1.5 M KOH
solution costs $3.50 per liter, 9 M H2SO4 solution costs $8 per liter, and ethanol
costs $20 per liter. A 50 g jar of alum from the grocery store costs $5.79. Do you
think it’s worth the time and trouble for Richard and Diane to make their own
alum from discarded aluminum cans? Explain your answer showing all
calculations.

1 answer

This info was attached as well

O’Keefe’s Farm Fresh Pickles
Take 2 gallons washed/chunked pickling cucumbers. Place in a crock or other
large non-aluminum container. Measure enough water to cover the cucumbers, then add 1
pint of pickling salt to water, then bring the water to a boil. Finally, pour boiling brine
(salt water) over the cucumbers. Then weigh cucumbers down with a plate so that they
stay submerged under the brine. Allow this to stand for 1 week.
After 1 week, drain the pickles and discard the brine. Cover pickles with fresh
boiling water and let stand for 24 hours.
Drain, but save the liquid. Add a walnut sized piece of alum (6 grams) to the
liquid. Bring to a boil and then pour over the pickles. Let stand for 24 hours. Note: you
can omit the alum if you wish, but alum does help to keep the pickles crisp.
After 24 hours, drain the liquid and discard it. Boil together 6 pints of vinegar, 2
pints water, 2oz of mustard seed, 4 cups of sugar, 5 oz of cinnamon sticks, 1 oz whole
allspice. Add to pickles through a strainer. Let stand 24 hours.
Bring to boiling point, but do not boil. Wash jars clean and keep hot until needed.
Prepare lids as manufacturer directs. Pack pickles into hot clean jar leaving 1/2 inch of
headspace. Wipe rim with clean damp cloth and seal. Continue until all jars are sealed.
Process in a boiling bath for 10 min.