how many molecules of chalk are in 1 mole?
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Chalk is pure calcium carbonate (CaCO3). The molar mass of calcium carbonate is 100-grams per mole. 5. Calculate the number of moles of calcium carbonate that were used to write your name.
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1 mole of them, from what highschool chem has taught me, so there should be 6.0211415E23 molecules.
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1 mole of carbon-12 has 6.02 x 10^23atoms. And one mole of anything is the same number of grams as the molecular mass. so, There are (1/12.0)moles with each mole having 6.022 x10^23 atoms.
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A mole (mol) is the amount of a substance that contains 6.02 × 10 23 representative particles of that substance. The mole is the SI unit for amount of a substance. Just like the dozen and the gross, it is a name that stands for a number. There are therefore 6.02 × 10 23 water molecules in a mole of water molecules.
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So, in one mole of nitrogen gas you have 6.022⋅1023 molecules of nitrogen gas, N2 . But since each individual molecule consists of 2 atoms of nitrogen, the number of moles of nitrogen atoms will be twice that of nitrogen gas molecules.
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A mole of a molecular compound contains 6 x 10 23 molecules. It has a mass that is equal to its relative formula mass .
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One mole (abbreviated mol) is equal to the number of atoms in 12 grams of carbon-12; this number is referred to as Avogadro's number and has been measured as approximately 6.022 x 1023.
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A mole of a compound will have 6.02 x 10^23 molecules, so the number of atoms in a mole is 6.02 x 10^23 x number of atoms in a molecule. One Molecule of Ca(OH)2 has 5 atoms. Therefore, one mole of Ca(OH)2 has 6.022 x10^23 x 5 = 30.11 x 10^23 atoms.
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Thus, for example, one mole of water contains 6.02214076×1023 molecules, whose total mass is about 18.015 grams – and the mean mass of one molecule of water is about 18.015 daltons. The mole is widely used in chemistry as a convenient way to express amounts of reactants and products of chemical reactions.
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One mole of a pure element = molecular mass of the element. One mole of molecules = Avogadro's constant number of molecules. So one mole of helium molecules = 6.022 x 1023 molecules of helium.
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Answer and Explanation: The mass of one mole of CO2 is 44.01 grams. There are 6.022 X 1023 molecules of CO2 in a mole, enough to make the grams in the mole equal the mass...
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According to Avagedro's principle a mole of any element consists 6.023×10^23atoms ,charges ,ions or molecules . Therefore 1 mole of NH3 has 6.023×10^23 molecules. 1 molecule of NH3 =1N +3H atoms =4 atoms.
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Answer Expert Verified 1 mole = 6.02 * 10^ 23 molecules.
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(1 mole of anything is 1 mole. The subscript tells the number of atoms of an element in one molecule. There are 2 moles of carbon in one mole of C2H6.
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There are 6.022×1023 O2 molecules in a mole of O2. Since you have 2 oxygen atoms in one O2 molecule, there are 2×6.022×1023 O atoms in a mole of O2.
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One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro's number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole). The molar mass of any element can be determined by finding the atomic mass of the element on the periodic table.
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1 molecule of calcium carbonate contains three oxygen atoms. Thus, 0. 01 mole of calcium carbonate will contain 0. 03 moles of oxygen atoms which is equal to 0.