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SteveA typical grain of salt has a mass of 0.3 mg.
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What metric unit is a grain of salt?
A grain of salt is typically measured in milligrams (mg) or micrograms (mcg). One grain of salt is equivalent to approximately 58 milligrams.
Why does one teaspoon of salt and one teaspoon of sugar weigh the same?
Even though salt and sugar have different chemical compositions, they both have similar densities. This means that a teaspoon of salt and a teaspoon of sugar will weigh the same because they take up the same volume.
If a typical grain of salt has a mass of 0.3 mg how many unit cells does it contain?
Assuming a grain of salt is sodium chloride (table salt) with a density of 2.16 g/cm^3, the volume of a grain of salt is 0.3 mg / 2.16 g/cm^3 = 0.139 mm^3. The volume of one unit cell of NaCl is 0.052 nm^3. Dividing the volume of the grain of salt by the volume of one unit cell gives approximately 2680 unit cells.
How many pounds is a gallon of salt?
It's difficult to say for sure. Salt comes in different sizes of grains therefor you'd really have to have a solid chunk of salt that is exactly one gallon in size and weigh it to know for sure.I've seen figures stating that 1 cubic yard of rock salt = 2160lbsAccording to Google, 1 cu yard = 201.974 US gallonsSo if 2160 lbs of Salt = 201.974 US Gallons then 2160/201.974 = 10.694 lbs/US Gal.As stated above, this is not exact but will get you close. Hope this helps.
How much does one cup of salt water weigh?
It will depend on how salty it is as the salt affects the density. 1 US cup = 236.588238 ml The density of pure water is exactly 1 gram per ml at 4 °C, and so 1 cup would weigh exactly 236.588238 g, or 8.345 oz (1 gram = 0.0352739619 ounces). The more salt you add, the higher the density, and the more 1 cup of salt water would weigh. Ocean water is only slightly more dense than pure water (approx. 1.026 grams per mL), although its density actually depends on how deep you are (it varies between 1.025 at the surface to 1.028 below 1000 meters). And so, to a close approximation 1 cup of ocean water would weigh 242.7 g, or 8.55 oz.
