the density of ethanol we calculate the production of one gallon 100% ethanol. from 11.59 pounds starch. In terms of corn as substrate and taking the weight. of a bushel of corn to be 56 pounds containing 6% w/w starch, a bushel of corn. would Yield 2.95 gallons of ethanol.
A purchase order (PO) is a commercial document and first official offer issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services.
The main difference between purchase order and invoice is that while a purchase order is just to order goods from the seller and thus it defines the selling terms. On the other hand, invoice is used to authorize sale, it is a confirmaton document. Take a read of the article presented to you, to have a better understanding on the two topics.