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The number of atoms in 1,2 moles of pure aluminum is 7,2265690284.1023.
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What is the volume occupied by 2.12 moles of NO?
The volume occupied by 2.12 moles of nitrous oxide is 9.35. A mole is described in chemistry as an amount of pure substance containing the same number of chemical units as there are atoms.
How many moles are in 5.39g of aluminum?
The atomic mass of Al is 27.0 Amount of Al in 5.39g pure sample = 5.39/27.0 = 0.200mol
How many moles are 3.58 x 1024 atoms of pure uranium 5.95 mole U?
3.58 X 1024 atoms of uranium (1 mole U/6.022 X 1023) = 5.94 moles uranium to be precise and with significant figures -------------------------------------------------------------------------------
How many atoms are in .750 moles of zinc?
15.0553*1023 Zn atomsBy definition of the 'mole' there are ALWAYS 6.02214*1023 particles (of any kind) in ONE mole of that matter. (This BIG number is called the Avogadro number or constant)So this is true for atoms Zn in 1 mole pure zinc, for H2O molecules in 1 mole water, even for sand particles in 1 mole sand (but there is not so much sand in a desert)
How many moles of calcium are in 15.5 g calcium chloride?
If grams/molar mass=moles, then first the molar mass of the compound must be found. CaCl2 has a molar mass of 110.984. Divide the number of grams, 15.5, by 110.984, and you get the number of moles. Now, seeing as calcium is not diatomic like oxygen or chlorine, there needs to be no conversion between the number of moles of calcium in the compound and the number of moles of calcium outside of the compound. atoms, the number of calcium atoms in the compound divided by one mole of the compound will give us the ratio. Conveniently enough, that ratio is one calcium atom per molecule of calcium chloride, meaning that for every one mole of calcium chloride, 1 mole of pure calcium can be extracted. So once you find the number of mole of CaCl2, that is the number of moles of calcium as well. This may be a little difficult to grasp, but I'm sure that your teacher, if you're a student, will be able to explain why rather well.
What is the number of atoms in 1.88 moles of Zn?
1.88 mol Zn ( 6.022 X10^23/1mol Zn ) = 1.13 X10^24 atoms.
What is the volume occupied by 2.12 moles of NO?
The volume occupied by 2.12 moles of nitrous oxide is 9.35. A mole is described in chemistry as an amount of pure substance containing the same number of chemical units as there are atoms.
What is a pure substance - all the atoms have the same atomic number or number of protons?
A pure substance in which all the atoms have the same atomic number or number of protons is an element.
How many atoms are in a gold ring that has a mass of 19.7 grams?
Well, firstly you need to know if it is pure gold. Assuming that it is, convert the grams to moles 19.7g Au x 1molAu/197.0gAu = 0.1moles Au And then, to get the number of atoms in 0.1 moles of gold, multiply it by Avogadro's number, 6.22x10^23 atoms per mole 0.1mol Au x 6.22x10^23atoms/mole = 6.22x10^22
How many moles of tin atoms are in a pure tin cup with a mass of 41.7 g?
41.7 grams tin (1 mole Sn/118.7 grams)(6.022 X 10^23/1 mole tin )(1 mole tin atoms/6.022 X 10^23) = 0.351 moles of tin atoms in pure tin cup ------------------------------------------------------
Is a aluminum Can a pure substance?
Aluminum cans are made from pure aluminum.
How many carbon atoms make up a 5.85 g piece of graphite?
5.85g/12gmol-1 (for carbon) = 0.4875mol. 0.4875(6.02x1023) = 2.935x1023 carbon atoms. Basically, moles times Avogadro's number equals number of representative particles.
How many moles are in 5.39g of aluminum?
The atomic mass of Al is 27.0 Amount of Al in 5.39g pure sample = 5.39/27.0 = 0.200mol
How many moles are 3.58 x 1024 atoms of pure uranium 5.95 mole U?
3.58 X 1024 atoms of uranium (1 mole U/6.022 X 1023) = 5.94 moles uranium to be precise and with significant figures -------------------------------------------------------------------------------
How many atoms are in the element copper and in the element carbon and in the element aluminum and how many atoms are in baking soda and how many atoms are in a sugar cube?
There are no "atoms in an element," but rather atoms OF an element. If you are trying to find the number of atoms in a sample of a pure element you divide its weight by its molar mass and then multiply by 6.022 x 10^23 to get the answer in atoms. The answer options are 2,3, or 4.
Is aluminum hydroxide a homogeneous mixture?
No, aluminum is one of the elemental metals. It is Al on the periodic table and it is a pure substance, not a mixture.
What do water aluminum redwood trees and valley quail all have in common are they all pure elements?
All things are made of atoms.
