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How much does one mole of bromine weigh?
One mole of bromine (Br2) weighs approximately 159.808 grams.
What does a gallon of silicon weigh?
It is odd to encounter a "gallon" of silicon. This metalloid has a density of 2.329 grams per cubic centimeter, and since there are about 3785.412 cubic centimeters in a gallon, your gallon of silicon, which is a solid at room temperature, will weigh about 8816.22 grams. That's about 8.816 kilograms, and that's about 19.4 pounds.
What does one molecule of ammonium nitrite contain?
In chemistry and physics, a mole is an amount of a substance equal to its molecular weight in grams. For example, oxygen has an atomic weight of 16. Hydrogen has an atomic weight of 1. A molecule of water, H2O, has two atoms of hydrogen and one atom of oxygen. So its molecular weight is 1+1+16=18. So a mole of water weighs 18 grams. (And since 1 cubic centimeter of water weighs 1 gram, a mole of water would be 18 cubic centimeters.) A mole of ammonium nitrate, NH4NO2, weighs 34 grams. (14+1+1+1+1+14+16+16=34) Other useful facts about moles of gases: The atoms of many gases travel around in pairs. That is, each molecule contains 2 atoms. The hydrogen molecule is H2; the oxygen molecule is O2; and the nitrogen molecule is N2. So a mole of hydrogen gas is 2 grams; a mole of oxygen gas is 32 grams; and a mole of nitrogen gas (atomic weight 14) is 28 grams. It so happens that all gases at the same temperature and pressure contain the same number of molecules. If we take a mole of any gas at normal temperature and pressure, we find that it occupies 22.4 liters of space. So, 22.4 liters of hydrogen is one mole and it weighs 2 grams. And 22.4 liters of oxygen is one mole and it weighs 32 grams. And 22.4 liters of nitrogen is one mole and it weighs 28 grams. Air is a mixture of 80% nitrogen molecules and 20% oxygen molecules. 22.4 liters of air is one mole and it weighs 29 grams. Now you can see why a hydrogen balloon will rise in air. Each mole of hydrogen in the balloon weighs only 2 grams, while each mole of the surrounding air weighs 32 grams. Now you can calculate how big a balloon you would need to fly. Some more common gases: Carbon has an atomic weight of 12, chlorine of 35, and fluorine of 19. A mole of carbon monoxide, CO, weighs 28 grams. (12+16=28) This is very close to the weight of air, so this poisonous gas tends to hang around where it is released. A mole of carbon dioxide, CO2, weighs 44 grams. (12+16+16=44) This is much heavier than air, and, while it is not poisonous, it often accumulates in low spots like abandoned wells and cisterns, pushing out all of the air. A mole of methane, CH4, weighs 16 grams. (12+1+1+1+1=16) Notice that it, like water vapor (18), is lighter than air and will rise. A mole of Freon 12 (used in car air conditioners), CCl2F2, weighs 120 grams. (12+35+35+19+19=120). This is so much heavier than air that it is unlikely that any significant amount could ever reach the altitude of the ozone layer.
Jessica's teacher has asked her to bring her 0.40 moles of sodium chloride to the laboratory She should bring approximately grams?
Jessica should bring about 23.6 grams of sodium chloride (NaCl) to the laboratory, as 1 mole of NaCl weighs 58.5 grams. This is calculated by multiplying the number of moles by the molar mass of NaCl (0.40 moles * 58.5 grams/mole = 23.6 grams).
How much does one mole of iron atoms weigh?
Use the equation; mass=moles*gramformulamass or m=n*gfm m=2*55.8 = 111.6g in two moles of Iron gfm or the molecular mass of a compound can be found by adding the Relative atomic masses of each element in the compound together. For example - Carbon dioxide CO2 The formula contains 1 Carbon atom and 2 Oxygen atoms (RAMs should be found in a datasheet/book or provided in the question. RAM = relative atomic mass) RAM Carbon = 12 RAM Oxygen = 16 gfm of CO2 = 12 + 32 = 44 or 1mole of CO2 = 44g
What gland weights about 35 grams when you're in puberty but shrinks to just 6 grams by the time you're 70 years old?
Thymus
What gland atrophies as the person ages?
The thymus atrophies with age -- in youth it is responsible for building up a stockpile of T cells, and it begins to atrophy once it stops production. It then takes on a smaller role of stimulating the immune system -- at birth, the thymus weighs approx 15 grams. During puberty it weighs approx 35 grams. By age 25, it drops down to 25 grams, and by age 60 it weighs a mere 1/2 gram.
What is the weight of a British Sixpence?
The British Sixpence - from 1953 to 1967 weighs 2.83 grams from 1947 to 1952 weighs 2.83 grams from 1937 to 1946 weighs 2.827 grams from 1920 to 1936 weighs 2.876 grams from 1838 to 1920 weighs 3.01 grams from 1816 to 1837 weighs 2.827 grams
What are some examples of something that weighs 400 grams?
== == * a snow petrel weighs 454 grams * a can of baked beans weighs 420 grams
A nickel weighs about 5 what?
A nickel weighs about 5 grams.
How much does 25 grams weigh?
it weighs not a gram more or less then 25 grams
What object weighs five grams?
A U.S. nickel weighs approximately five grams.
What is an item that weighs 100 grams?
A standard baseball weighs around 145 grams, so slightly less than 100 grams. An average-sized apple weighs around 100 grams, making it a common example of an item that weighs approximately 100 grams.
My cat snickers weighs 11.7 pounds what is his mass in grams?
Snickers weighs about 5,310 grams.
If an apple weighs 150 grams how much will it weighs in ounces?
150 grams = 5.3 ounces
What object weighs 15 grams?
A medium-sized apple weighs around 100 grams, which is heavier than 15 grams.
How much does a current nickel weigh in grams?
A U.S. nickel weighs 5 grams
