how many atoms are there altogether in a molecule of copper (ii) sulfate?
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If we have 6.02214076×10+23 hydrated copper sulfate molecules and each of these molecules contains exactly nine (9) oxygen atoms, then we expect there to be exactly 9 x 6.02214076×10+23 oxygen atoms in the original sample.
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Sulfate is a polyatomic ion with 1 sulfur (6 valence electrons), 4 oxygens (4 x 6 valence electrons = 24 e-) and a charge of -2 (2 valence electrons).
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i) 3 atoms because H2S molecule has two atoms of hydrogen and one atom of sulphur. (ii) 5 atoms because PO43- ion has one atom of phosphorus and four atoms of oxygen.
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Expert Answer The value of the number of moles of the copper atom is 0.5 mol. The value of the Avogadro's number is 6.022×1023 atoms /mol. Substitute the value in equation (1). Therefore, the number of copper atoms present in 0.5 moles of copper is 3.011×1023...
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The formula of aluminium sulphate is Al(SO). So, there are 2 Al atoms, 3 S atoms and 12 O atoms. Thus, there are a total of 17 atoms in one molecule of aluminium sulphate.
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Quite clearly, in 2 formula units of silver nitrate, there are 2 silver atoms, 2 nitrogen atoms, and 6 oxygen atoms. We can improve this answer by using the mole concept.
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The empirical formula for copper (II) oxide is CuO. This is the same as the molecular formula for copper oxide as well.
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And, thus in 2.00⋅mol of silver, there are 2⋅mol×NA = 6.022×1023⋅mol−1 ×2⋅mol =1.20×1024 individual silver atoms.
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Concept 2. The relation between molecular (formula) mass and molar mass Page 4 4 • To obtain one mole of copper atoms (6.02 x 1023 atoms), weigh out 63.55 g copper.
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Copper(II) sulfate pentahydrate is an example of such a hydrate. Its formula is CuSO4 5H2O. The five in front of the formula for water tells us there are 5 water molecules per formula unit of CuSO4 (or 5 moles of water per mole of CuSO4).
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In 1 molecule of CuSO4 number of water molecule is 0 but in 1 molecule of hydrated copper sulphate 5 molecules of water are present.
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Chegg.com. The total number of atoms present in a molecule can be obtained by adding together all the atoms present in the molecule. In this case contains 3 calcium, 2 phosphorus and 8 oxygen atoms. So, in total 13 atoms are present in this molecule.
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Answer. (i) 3 atoms because H2S molecule has two atoms of hydrogen and one atom of sulphur. (ii) 5 atoms because PO43- ion has one atom of phosphorus and four atoms of oxygen.
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The number of atoms in S₈ : 6.02 × 10²³ × 0.25 = 1.505 × 10²³ atoms.
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One is taken from the 4s sub-shell, the other from the 3d sub-shell. So the electron configuration of Cu2+ is: 1s2 2s2 2p6 3s2 3p6 3d9.
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Type of Bonding: Copper (II) Sulfate is a ionic bond between a transition metal and a nonmetal. Sulfate takes two Copper atoms and gains a negative valence charge, whereas the Copper gains a positive valence charge.
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But there are 26 nonbonding electrons in this molecule. We have already satisfied the octets for all five atoms, and we still have one more pair of valence electrons. We therefore expand the valence shell of the sulfur atom to hold more than eight electrons.