The answer is because they are not a substance, but a mixture of organic compounds.
Explanation:
A range of values is used because they are not a substance, but a mixture of organic compounds that has a range of molar masses. Corn syrup contains glucose in not less than 70% by weight of total solids and a reducing sugar content of 20% by weight on a dry basis. The composition of gasoline depends on the source from which it is extracted, therefore it has different molar masses. A gasoline with a long carbon chain is heavy and has a higher mass for a fixed volume, so its density will increase. Any change affecting the product will lead to an increase or decrease in density.
A range of values is given for the density of gasoline and corn syrup could be because these substances changes their volumes along with the changes in temperature which will result to a change in density as well. Hope this answers the question.
BillBill's recipe for onion soup calls for 4.0 lb of thinly sliced onions . if an onion has an average mass of 115 g , how many onions does Bill need ?
