18.0152 grams
How much does a mole weigh? You can have a dozen eggs, and that would weigh about 12oz. A dozen donuts would weigh about 24 ounces, and a dozen cornflakes would weigh about 6 grams. Likewise, a mol of atoms has a different weight, depending on what atom you're talking about. If I wanted to know how much a dozen eggs weighed, I could take the average weight for one egg and multiply by 12: It is simple to calculate the weight and volume of a mole of water. A mole is a unit of measuring the quantity of anything. A single mole is set to the number of particles found in 12.000 grams of carbon-12. This number is 6.022 x 10 23 carbon atoms. For example, if you weigh 1/2 as much as C-12, you weigh 6. If you weigh twice as much, you weigh 24. The molecular weight of a substance is needed to tell us how many grams are in one mole of that substance. The mole is the standard method in chemistry for communicating how much of a substance is present. This means 1 mole of hydrogen weighs 1.0079 grams and 1 mole of oxygen weighs 15.9994 grams. Water would weigh. weight of water = 2(1.0079) g + 15.9994 g. weight of water = 2.0158 g + 15.9994 g. weight of water = 18.0152 g. One mole of water weighs 18.0152 grams. To find out the volume of water in one mole, you need to know the density of water. The density of water varies depending on temperature and pressure but can usually be taken as 1 gram per milliliter. Density is the amount of mass per volume or. Water consists of one oxygen atom and two hydrogen atoms. This means that the mass of a water molecule is 1g + 1g + 16g = 18 g/ mol. When the number of moles of water is known, one can calculate how many grams of weight this is, by using the molar weight of water.
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how much does one mole of heavy water weigh