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He is the scientist that discovered Avogadro's Law/Number, which is the number of atoms, molecules, or particles in 1 mole of a substance.
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∙ 13y ago
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How many moles of C atoms are in 1 mol of sucrose?
1 mole of sucrose cotains 12 multiply by 6.023 exponent 23 atoms.
How many hydrogen atoms are in one molecule of aspartame?
There are 17 micromoles in 5.00mg of aspartame. 5.00mg has a molecular weight of 294.303 g/mol. Aspartame is composed of carbon, hydrogen, nitrogen and oxygen. The chemical formula for aspartame is C14H18N2O5. The molar mass is 294.30 g mol−1. There are 6.022 x 10 ^23 molecules in a mole
How many Co atoms are there in 230 grams of CoCl2?
To answer this question you need the molecular weight of CoCl2. CoCl2 molecular weight is 129.84 g/mole 230g CoCl2 divided by the molecular weight 230 g / 129.84 g/mole = 1.77 moles of CoCl2 Multiply the moles by Avagodro's number 1.77 mole * 6.022 X 1023 molecules/mole = 1.07 X 1024 molecules of CoCl2
Why mole is considered an arbitrary unit?
6.02 x 1023 atoms is an arbitrary number. Avagodro could have simply said that a "mole" is 12 atoms, or 1x1023 atoms, and achieved a similar result. When we say that a mole of a substance in a given reaction yields one mole of this atom and one-half mole of another we are essentially saying that for x amount of a starting chemical, we produce x amount of the first element, and 1/2 x amount of the second element. The x amount that we use could be 1000 atoms, 10,000 atoms, or 1x10100 atoms. In any case, we will get x number of one, and 1/2 x of the other, regardless of what x is. A mole, or 6.02x1023 atoms (or molecules) is the arbitrary number that we typically use. By contrast, acceleration due to gravity is NOT arbitrary. The mass of the earth determines that for objects near the surface of the earth, there will be an acceleration of 11.9 m/s2 regardless of what we choose to call it. So gravity is Intrinsic (forced by something else) where a mole is just a convenient (arbitrary) way to talk about a certain number of atoms (or molecules).
How many moles of cobalt atoms are there in 2.00 billion Co atoms?
For this problem, the atomic mass is not required. Take the number of atoms and divide it by Avogadro's constant, 6.02 × 1023. Multiply by one mole for the units to cancel.6.00 × 109 atoms / (6.02 × 1023)= 9.97 × 10-15moles
How many atoms are ther in 3.5 mol of carbon?
1 mole of any substance contains 6.02x1023 representative particles. That is called Avogadro's number, and it's one of the most important constants in science. So, 3 moles of carbon would be 3 times that, which would be 18.06x1023, which simplifies to 1.806x1024 atoms.
Which number indicates the number of atoms of each element in a molecule of a substance.?
If there is only one atom, there will not be a number. Otherwise, they are the numbers which are normally written in subscript after the symbol for the element.
