Author Question: Give some reasons why the experimental weight of a cup of flour might differ from the standard ... (Read 19 times)

bio_gurl

  • Hero Member
  • *****
  • Posts: 524
Give some reasons why the experimental weight of a cup of flour might differ from the standard weight.

Question 2

Which method of measuring flour gives results closest to the standard weight of all-purpose flour?



leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Answer to Question 1

White flours have particles that differ in size, shape, and density. Particles have a tendency to pack. Experimental measurements and standard weights recorded when measuring flour can differ due to the amount of packing involved. If an individual firmly packs unsifted, spooned flour it will weigh more than its standard weight. The amount of air incorporated into the dry measuring cup also affects the differences in standard and experimental weight. Human error and individual measuring techniques make measurements less accurate and less precise. This will cause an experimental weight of flour to be more or less than the given standard weight. The weight may be different because of inconsistent scales or utensils.

Answer to Question 2

To obtain accurate measurements, white flour should be sifted before being lightly spooned into a fractional measuring cup and leveled with a spatula. You should not tap or shake the measuring cup because this will pack the flour particles too tightly and result in too much flour being used. Other flours (whole-grain and graham) should not be sifted. Instead, these flours should be lightly stirred before being scooped into a fractional measuring cup.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

For a complete list of videos, visit our video library