Yes, pepper does have mass
The atomic mass of a pepper can vary depending on the type of pepper. For example, the atomic mass of a bell pepper is approximately 18.02 g/mol, while the atomic mass of a chili pepper is around 16.04 g/mol.
100 g of salt has the exact same mass as 100 g of pepper. However, pepper is less dense than salt so equal volumes of salt and pepper would have the salt have a greater mass.
A typical density for black pepper is 550g/l. This really depends on what kind of pepper you are talking about. Here is a useful formula to find out the density of your method. D= M/V (Density equals Mass divided by Volume) You can find the Mass by weighing the pepper on a scale. You can figure out the approximate volume by measuring the pepper in different ways (depending on its size). Once you have the 2 results, you can divide the Mass of the pepper by the Volume of the pepper. The result would be the Density of the pepper.
Grams or Ounces.
You do not have to have a gun license to carry pepper spray. It is legal in all states but some states and cities have restrictions. In New York and Massachusetts you buy Pepper Spray from a licensed Firearms Dealer (In Mass. you can also buy it from a Pharmacist).
The only people who can sell pepper spray in Mass are licensed firearms dealers. http://www.ledefensetech.com/pepperspraylaws.htm If you're wondering how long it takes to get your license to become a firearms dealer, I'm not sure.
Yes, a pimiento pepper is considered a hot pepper.
Pepper enclosureYes indeed a pepper is a seed enclosure because the seeds in a pepper are closed in by the outside of the pepper.
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Yes, cayenne pepper is a type of red pepper.
Pepper = Pepa
Ghost pepper